diff --git a/index.html b/index.html
index 1dcf1744..33ccd07e 100644
--- a/index.html
+++ b/index.html
@@ -1947,7 +1947,7 @@ <h5 class="modal-title-revision"></h5>
                                                         <label>Setpoint Hz</label>
                                                         <input type="text" step="1" min="0" max="255" />
                                                     </td>
-                                                    <td name="rcSmoothingFeedforwardHz">
+                                                    <td name="rcSmoothingFeedforwardHz" id="rcSmoothingFeedforwardHz">
                                                         <label>Feedforward Hz</label>
                                                         <input type="text" step="1" min="0" max="255" />
                                                     </td>
@@ -1968,7 +1968,7 @@ <h5 class="modal-title-revision"></h5>
                                                         <label>Setpoint</label>
                                                         <input type="text" step="1" min="0"/>
                                                     </td>
-                                                    <td name='rcSmoothingActiveCutoffsFf'>
+                                                    <td name='rcSmoothingActiveCutoffsFf' id="rcSmoothingActiveCutoffsFf">
                                                         <label>Feedforward</label>
                                                         <input type="text" step="1" min="0"/>
                                                     </td>
diff --git a/src/header_dialog.js b/src/header_dialog.js
index ea1440df..7662991c 100644
--- a/src/header_dialog.js
+++ b/src/header_dialog.js
@@ -623,7 +623,7 @@ export function HeaderDialog(dialog, onSave) {
       name: "rc_smoothing_active_cutoffs_ff",
       type: FIRMWARE_TYPE_BETAFLIGHT,
       min: "4.3.0",
-      max: "999.9.9",
+      max: "4.5.999",
     },
     {
       name: "rc_smoothing_active_cutoffs_sp",
@@ -1572,6 +1572,21 @@ export function HeaderDialog(dialog, onSave) {
 
     $(".dshot_bidir_required").toggle(sysConfig.dshot_bidir == 1);
 
+    // RC Smoothing
+    if (activeSysConfig.firmwareType === FIRMWARE_TYPE_BETAFLIGHT) {
+      if (semver.gte(activeSysConfig.firmwareVersion, "4.6.0")) {
+        $("#rcSmoothingFeedforwardHz").hide();
+        $("#rcSmoothingActiveCutoffsFf").hide();
+        setParameter("rcSmoothingActiveCutoffsSp", sysConfig.rc_smoothing_active_cutoffs_ff_sp_thr[0], 0);
+        setParameter("rcSmoothingActiveCutoffsThr", sysConfig.rc_smoothing_active_cutoffs_ff_sp_thr[1], 0);
+      } else if (semver.gte(activeSysConfig.firmwareVersion, "4.3.0")) {
+        setParameter("rcSmoothingFeedforwardHz", sysConfig.rc_smoothing_feedforward_hz, 0);
+        setParameter("rcSmoothingActiveCutoffsFf", sysConfig.rc_smoothing_active_cutoffs_ff_sp_thr[0], 0);
+        setParameter("rcSmoothingActiveCutoffsSp", sysConfig.rc_smoothing_active_cutoffs_ff_sp_thr[1], 0);
+        setParameter("rcSmoothingActiveCutoffsThr", sysConfig.rc_smoothing_active_cutoffs_ff_sp_thr[2], 0);
+      }
+    }
+
     if (semver.gte(activeSysConfig.firmwareVersion, "4.5.0")) {
       setParameter("rcSmoothingRxSmoothed", sysConfig.rc_smoothing_rx_smoothed, 0);
       $("#rcSmoothingRxSmoothed").show();
@@ -1597,11 +1612,6 @@ export function HeaderDialog(dialog, onSave) {
         sysConfig.rc_smoothing_mode,
         RC_SMOOTHING_MODE
       );
-      setParameter(
-        "rcSmoothingFeedforwardHz",
-        sysConfig.rc_smoothing_feedforward_hz,
-        0
-      );
       setParameter(
         "rcSmoothingSetpointHz",
         sysConfig.rc_smoothing_setpoint_hz,
@@ -1622,21 +1632,6 @@ export function HeaderDialog(dialog, onSave) {
         sysConfig.rc_smoothing_auto_factor_throttle,
         0
       );
-      setParameter(
-        "rcSmoothingActiveCutoffsFf",
-        sysConfig.rc_smoothing_active_cutoffs_ff_sp_thr[0],
-        0
-      );
-      setParameter(
-        "rcSmoothingActiveCutoffsSp",
-        sysConfig.rc_smoothing_active_cutoffs_ff_sp_thr[1],
-        0
-      );
-      setParameter(
-        "rcSmoothingActiveCutoffsThr",
-        sysConfig.rc_smoothing_active_cutoffs_ff_sp_thr[2],
-        0
-      );
     } else if (
       activeSysConfig.firmwareType === FIRMWARE_TYPE_BETAFLIGHT &&
       semver.gte(activeSysConfig.firmwareVersion, "3.4.0")