diff --git a/src/spice2x/games/ccj/bi2x_hook.cpp b/src/spice2x/games/ccj/bi2x_hook.cpp
index 03ec5a8..ddfb772 100644
--- a/src/spice2x/games/ccj/bi2x_hook.cpp
+++ b/src/spice2x/games/ccj/bi2x_hook.cpp
@@ -1,5 +1,7 @@
 #include "bi2x_hook.h"
 
+#if SPICE64
+
 #include <cstdint>
 #include "util/detour.h"
 #include "util/logging.h"
@@ -16,15 +18,19 @@ namespace games::ccj {
      */
 
     struct AIO_SCI_COMM {
+        uint8_t data[0xf8];
     };
 
     struct AIO_NMGR_IOB2 {
+        uint8_t data[0xe30];
     };
 
     struct AIO_IOB2_BI2X_TBS {
+        uint8_t data[0x4680];
     };
 
     struct AIO_IOB2_BI2X_WRFIRM {
+        uint8_t data[0x20f48];
     };
 
     struct AIO_NMGR_IOB__NODEINFO {
@@ -72,6 +78,12 @@ namespace games::ccj {
         AIO_IOB2_BI2X_AC1__OUTPUTDATA OutputData;
     };
 
+    // checked with UJK-001-2024060400
+    static_assert(sizeof(AIO_SCI_COMM) == 0xf8);
+    static_assert(sizeof(AIO_NMGR_IOB2) == 0xe30);
+    static_assert(sizeof(AIO_IOB2_BI2X_TBS) == 0x4680);
+    static_assert(sizeof(AIO_IOB2_BI2X_WRFIRM) == 0x20f48);
+
     static void write_iccr_led(Lights::ccj_lights_t light, uint8_t value);
 
     /*
@@ -621,4 +633,6 @@ namespace games::ccj {
         detour::trampoline_try(libaioDll, "aioNodeCtl_IsError",
                                aioNodeCtl_IsError, &aioNodeCtl_IsError_orig);
     }
-}
\ No newline at end of file
+}
+
+#endif
diff --git a/src/spice2x/games/ccj/bi2x_hook.h b/src/spice2x/games/ccj/bi2x_hook.h
index 4417688..35b5250 100644
--- a/src/spice2x/games/ccj/bi2x_hook.h
+++ b/src/spice2x/games/ccj/bi2x_hook.h
@@ -1,5 +1,9 @@
 #pragma once
 
+#if SPICE64
+
 namespace games::ccj {
     void bi2x_hook_init();
-}
\ No newline at end of file
+}
+
+#endif
diff --git a/src/spice2x/games/ccj/ccj.cpp b/src/spice2x/games/ccj/ccj.cpp
index fad70a8..5a825d3 100644
--- a/src/spice2x/games/ccj/ccj.cpp
+++ b/src/spice2x/games/ccj/ccj.cpp
@@ -68,9 +68,13 @@ namespace games::ccj {
         detour::trampoline_try("execexe.dll", MAKEINTRESOURCE(11),
                                (void*)execexe_CreateFileW_hook,(void**)&execexe_CreateFileW_orig);
 
+#if SPICE64
+
         // insert BI2X hooks
         bi2x_hook_init();
 
+#endif
+
         // insert trackball hooks
         trackball_hook_init();
 
diff --git a/src/spice2x/games/gitadora/bi2x_hook.cpp b/src/spice2x/games/gitadora/bi2x_hook.cpp
index 4d6c9c7..9488156 100644
--- a/src/spice2x/games/gitadora/bi2x_hook.cpp
+++ b/src/spice2x/games/gitadora/bi2x_hook.cpp
@@ -1,5 +1,7 @@
 #include "bi2x_hook.h"
 
+#if SPICE64
+
 #include <optional>
 #include <cstdint>
 #include "util/detour.h"
@@ -18,24 +20,29 @@ namespace games::gitadora {
     //  */
 
     struct AIO_NMGR_IOB2 {
+        uint8_t data[0xe18];
     };
 
     struct AIO_IOB2_BI2X_AC1__SETTING {
     };
 
     struct AIO_NMGR_IOB5 {
+        uint8_t data[0xb10];
     };
 
     struct AIO_SCI_COMM {
+        uint8_t data[0x100];
     };
 
     struct AIO_IOB5_Y32D {
+        uint8_t data[0x2e8];
     };
 
     // struct AIO_IOB5_Y33I {
     // };
 
     struct AIO_IOB2_BI2X_AC1 {
+        uint8_t data[0x4570];
     };
 
     struct AIO_NMGR_IOB__NODEINFO {
@@ -43,6 +50,7 @@ namespace games::gitadora {
     };
 
     struct AIO_IOB2_BI2X_WRFIRM {
+        uint8_t data[0x20f48];
     };
 
     struct AIO_SCI_COMM_T {
@@ -159,6 +167,14 @@ namespace games::gitadora {
         uint8_t unk[0xB1];
     };
 
+    // verified with M32-007-2025092400
+    static_assert(sizeof(AIO_NMGR_IOB2) == 0xe18);
+    static_assert(sizeof(AIO_NMGR_IOB5) == 0xb10);
+    static_assert(sizeof(AIO_SCI_COMM) == 0x100);
+    static_assert(sizeof(AIO_IOB5_Y32D) == 0x2e8);
+    static_assert(sizeof(AIO_IOB2_BI2X_AC1) == 0x4570);
+    static_assert(sizeof(AIO_IOB2_BI2X_WRFIRM) == 0x20f48);
+
      /*
       * typedefs
       */
@@ -701,4 +717,6 @@ namespace games::gitadora {
         detour::trampoline_try(libaioDll, "aioNodeCtl_UpdateDevicesStatus",
                                aioNodeCtl_UpdateDevicesStatus, &aioNodeCtl_UpdateDevicesStatus_orig);
     }
-}
\ No newline at end of file
+}
+
+#endif
diff --git a/src/spice2x/games/gitadora/bi2x_hook.h b/src/spice2x/games/gitadora/bi2x_hook.h
index 8572bd9..6114208 100644
--- a/src/spice2x/games/gitadora/bi2x_hook.h
+++ b/src/spice2x/games/gitadora/bi2x_hook.h
@@ -1,5 +1,9 @@
 #pragma once
 
+#if SPICE64
+
 namespace games::gitadora {
     void bi2x_hook_init();
-}
\ No newline at end of file
+}
+
+#endif
diff --git a/src/spice2x/games/pc/bi2x_hook.cpp b/src/spice2x/games/pc/bi2x_hook.cpp
index c1100e9..bfbb58d 100644
--- a/src/spice2x/games/pc/bi2x_hook.cpp
+++ b/src/spice2x/games/pc/bi2x_hook.cpp
@@ -1,5 +1,7 @@
 #include "bi2x_hook.h"
 
+#if SPICE64
+
 #include "util/execexe.h"
 #include "util/logging.h"
 #include "rawinput/rawinput.h"
@@ -9,9 +11,10 @@
 #include "util/tapeled.h"
 #include "pc.h"
 #include "util/utils.h"
+#include "util/time.h"
+#include "util/socd_cleaner.h"
 
 namespace games::pc {
-    bool PC_KNOB_MODE = false;
 
     constexpr float RELATIVE_DECAY = 0.02f;
     struct FADER_RELATIVE {
@@ -75,18 +78,22 @@ namespace games::pc {
      */
 
     struct AIO_SCI_COMM {
+        uint8_t data[0xf8];
     };
 
     struct AIO_NMGR_IOB2 {
+        uint8_t data[0xe30];
     };
 
     struct AIO_IOB2_BI2X_AC1 {
+        uint8_t data[0x4538];
     };
 
     struct AIO_IOB2_BI2X_AC1__SETTING {
     };
 
     struct AIO_IOB2_BI2X_WRFIRM {
+        uint8_t data[0x20f48];
     };
 
     struct AIO_IOB2_BI2X_AC1__INPUT
@@ -191,6 +198,12 @@ namespace games::pc {
         AIO_IOB2_BI2X_AC1__ICNPIN ICnPinHist[20];
     };
 
+    // verified with XIF-2024122300
+    static_assert(sizeof(AIO_SCI_COMM) == 0xf8);
+    static_assert(sizeof(AIO_NMGR_IOB2) == 0xe30);
+    static_assert(sizeof(AIO_IOB2_BI2X_AC1) == 0x4538);
+    static_assert(sizeof(AIO_IOB2_BI2X_WRFIRM) == 0x20f48);
+
     /*
      * typedefs
      */
@@ -338,14 +351,21 @@ namespace games::pc {
                 val = (GameAPI::Analogs::getState(RI_MGR, analogs[Analogs::FaderL]) - 0.5f) * 2;
             }
         }
-        if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Left]) &&
-            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Right])) {
-            val = 0.f;
-        } else if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Left])) {
+
+        const auto now = get_performance_milliseconds();
+
+        const auto fader_l_socd = socd::socd_clean(
+            0, // Fader-L
+            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Left]),
+            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Right]),
+            now);
+
+        if (fader_l_socd == socd::SocdCCW) {
             val = -1.0f;
-        } else if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Right])) {
+        } else if (fader_l_socd == socd::SocdCW) {
             val = +1.0f;
         }
+
         o_DevStatus->Input.CN15_7 = (val < 0.2f) ? 0xFF : 0;
         o_DevStatus->Input.CN15_6 = (val > -0.85f && val < 0.35f) ? 0xFF : 0;
         o_DevStatus->Input.CN15_5 = (val > -0.6f && val < 0.6f) ? 0xFF : 0;
@@ -363,14 +383,19 @@ namespace games::pc {
                 val = (GameAPI::Analogs::getState(RI_MGR, analogs[Analogs::FaderR]) - 0.5f) * 2;
             }
         }
-        if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Left]) &&
-            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Right])) {
-            val = 0.f;
-        } else if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Left])) {
+
+        const auto fader_r_socd = socd::socd_clean(
+            1, // Fader-R
+            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Left]),
+            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Right]),
+            now);
+
+        if (fader_r_socd == socd::SocdCCW) {
             val = -1.0f;
-        } else if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Right])) {
+        } else if (fader_r_socd == socd::SocdCW) {
             val = +1.0f;
         }
+
         o_DevStatus->Input.CN11_20 = (val < 0.2f) ? 0xFF : 0;
         o_DevStatus->Input.CN11_19 = (val > -0.85f && val < 0.35f) ? 0xFF : 0;
         o_DevStatus->Input.CN9_10 = (val > -0.6f && val < 0.6f) ? 0xFF : 0;
@@ -737,3 +762,5 @@ namespace games::pc {
     }
 
 }
+
+#endif
\ No newline at end of file
diff --git a/src/spice2x/games/pc/bi2x_hook.h b/src/spice2x/games/pc/bi2x_hook.h
index 3a30b3c..7f52b4d 100644
--- a/src/spice2x/games/pc/bi2x_hook.h
+++ b/src/spice2x/games/pc/bi2x_hook.h
@@ -1,5 +1,9 @@
 #pragma once
 
+#if SPICE64
+
 namespace games::pc {
     void bi2x_hook_init();
 }
+
+#endif
diff --git a/src/spice2x/games/pc/pc.cpp b/src/spice2x/games/pc/pc.cpp
index 23b2716..a1ed135 100644
--- a/src/spice2x/games/pc/pc.cpp
+++ b/src/spice2x/games/pc/pc.cpp
@@ -12,10 +12,12 @@
 #include "misc/wintouchemu.h"
 #include "hooks/graphics/graphics.h"
 #include "rawinput/rawinput.h"
+#include "util/socd_cleaner.h"
 
 namespace games::pc {
     std::string PC_INJECT_ARGS = "";
     bool PC_NO_IO = false;
+    bool PC_KNOB_MODE = false;
 
     static acioemu::ACIOHandle *acioHandle = nullptr;
     static std::wstring portName = L"COM1";
@@ -61,6 +63,11 @@ namespace games::pc {
         return ERROR_NOT_SUPPORTED;
     }
 
+    void PCGame::pre_attach() {
+        // SOCD
+        socd::ALGORITHM = socd::SocdAlgorithm::PreferRecent;
+    }
+
     void PCGame::attach() {
         Game::attach();
 
@@ -78,9 +85,14 @@ namespace games::pc {
             execexe::load_library("libaio-iob2_video.dll");
             execexe::load_library("win10actlog.dll");
 
+#if SPICE64
+
             if (!PC_NO_IO) {
                 bi2x_hook_init();
             }
+
+#endif
+
         });
 
         const auto user32Dll = "user32.dll";
diff --git a/src/spice2x/games/pc/pc.h b/src/spice2x/games/pc/pc.h
index 0eca4c3..487d9b5 100644
--- a/src/spice2x/games/pc/pc.h
+++ b/src/spice2x/games/pc/pc.h
@@ -11,6 +11,7 @@ namespace games::pc {
     public:
         PCGame() : Game("Polaris Chord") {}
 
+        virtual void pre_attach() override;
         virtual void attach() override;
         virtual void detach() override;
     };
diff --git a/src/spice2x/games/qks/bi2x_hook.cpp b/src/spice2x/games/qks/bi2x_hook.cpp
index 36ed09a..795d931 100644
--- a/src/spice2x/games/qks/bi2x_hook.cpp
+++ b/src/spice2x/games/qks/bi2x_hook.cpp
@@ -1,5 +1,7 @@
 #include "bi2x_hook.h"
 
+#if SPICE64
+
 #include "util/detour.h"
 #include "util/logging.h"
 #include "rawinput/rawinput.h"
@@ -15,15 +17,19 @@ namespace games::qks {
      */
 
     struct AIO_SCI_COMM {
+        uint8_t data[0xf8];
     };
 
     struct AIO_NMGR_IOB {
+        uint8_t data[0xa00];
     };
 
     struct AIO_IOB2_BI2X_AC1 {
+        uint8_t data[0x3908];
     };
 
     struct AIO_IOB2_BI2X_WRFIRM {
+        uint8_t data[0x20f48];
     };
 
     struct AIO_NMGR_IOB__NODEINFO {
@@ -174,6 +180,12 @@ namespace games::qks {
         AIO_IOB2_BI2X_AC1__SETTING Setting;
     };
 
+    // verified with UKS-001-2024030600
+    static_assert(sizeof(AIO_IOB2_BI2X_AC1) == 0x3908);
+    static_assert(sizeof(AIO_SCI_COMM) == 0xf8);
+    static_assert(sizeof(AIO_NMGR_IOB) == 0xa00);
+    static_assert(sizeof(AIO_IOB2_BI2X_WRFIRM) == 0x20f48);
+
     /*
      * typedefs
      */
@@ -602,4 +614,6 @@ namespace games::qks {
         detour::trampoline_try(libaioDll, "aioNodeCtl_IsError",
                                aioNodeCtl_IsError, &aioNodeCtl_IsError_orig);
     }
-}
\ No newline at end of file
+}
+
+#endif
diff --git a/src/spice2x/games/qks/bi2x_hook.h b/src/spice2x/games/qks/bi2x_hook.h
index fcaabbb..e36509f 100644
--- a/src/spice2x/games/qks/bi2x_hook.h
+++ b/src/spice2x/games/qks/bi2x_hook.h
@@ -1,7 +1,11 @@
 #pragma once
 
+#if SPICE64
+
 #include <stdint.h>
 
 namespace games::qks {
     void bi2x_hook_init();
-}
\ No newline at end of file
+}
+
+#endif
diff --git a/src/spice2x/games/qks/qks.cpp b/src/spice2x/games/qks/qks.cpp
index 5223ada..6924b96 100644
--- a/src/spice2x/games/qks/qks.cpp
+++ b/src/spice2x/games/qks/qks.cpp
@@ -86,9 +86,13 @@ namespace games::qks {
         detour::trampoline_try("execexe.dll", MAKEINTRESOURCE(9),
                                execexe_CreateFileA_hook,&execexe_CreateFileA_orig);
 
+#if SPICE64
+
         // insert BI2X hooks
         bi2x_hook_init();
 
+#endif
+
         // add card reader
         acioHandle = new acioemu::ACIOHandle(portName.c_str());
         devicehook_init_trampoline();