diff --git a/PROVESFlightControllerReference/Components/ComDelay/ComDelay.cpp b/PROVESFlightControllerReference/Components/ComDelay/ComDelay.cpp
index 687aac929..30244cb3f 100644
--- a/PROVESFlightControllerReference/Components/ComDelay/ComDelay.cpp
+++ b/PROVESFlightControllerReference/Components/ComDelay/ComDelay.cpp
@@ -38,9 +38,38 @@ void ComDelay ::parameterUpdated(FwPrmIdType id) {
 // Handler implementations for typed input ports
 // ----------------------------------------------------------------------
 
+// Image-currency marker: grep-able via `strings zephyr.elf` to verify the flashed
+// binary actually contains the divider-0 passthrough change (never trust "Verified OK").
+static volatile const char COMDELAY_DIV0_PASSTHROUGH_MARKER[] = "comdelay-div0-passthrough-20260723";
+
 void ComDelay ::comStatusIn_handler(FwIndexType portNum, Fw::Success& condition) {
-    this->m_last_status = condition;
-    this->m_last_status_valid = true;
+    // Read the divider; on invalid/uninit fall back to the default (matches run_handler).
+    Fw::ParamValid is_valid;
+    U16 current_divisor = this->paramGet_DIVIDER(is_valid);
+    if ((is_valid == Fw::ParamValid::INVALID) || (is_valid == Fw::ParamValid::UNINIT)) {
+        current_divisor = Components::DEFAULT_DIVIDER;
+    }
+
+    if (current_divisor == 0) {
+        // DIVIDER == 0 means "no delay": forward the status immediately instead of
+        // latching it for the next rate tick. This removes the rate-group quantization
+        // (one status per tick) so downlink is paced purely by radio TX-done.
+        //
+        // Threading note: ComDelay is passive, so this executes on the CALLER's thread
+        // (the radio-side comStatus source). That is safe because comStatusOut feeds an
+        // async input (ComQueue), which only enqueues a message here.
+        //
+        // Coherence with run_handler: in passthrough mode we never set
+        // m_last_status_valid, so this status cannot ALSO be emitted by run_handler
+        // (no duplication). A status latched earlier under DIVIDER > 0 is still
+        // consumed by run_handler's compare_exchange as before (no loss) if the
+        // divider is changed to 0 at runtime.
+        static_cast<void>(COMDELAY_DIV0_PASSTHROUGH_MARKER[0]);  // volatile read keeps the marker in the image
+        this->comStatusOut_out(0, condition);
+    } else {
+        this->m_last_status = condition;
+        this->m_last_status_valid = true;
+    }
 }
 
 void ComDelay ::run_handler(FwIndexType portNum, U32 context) {