diff --git a/firmware/console/binary/tunerstudio.cpp b/firmware/console/binary/tunerstudio.cpp
index 730d8391dd..cd82b062c1 100644
--- a/firmware/console/binary/tunerstudio.cpp
+++ b/firmware/console/binary/tunerstudio.cpp
@@ -271,7 +271,14 @@ static void onlineApplyWorkingCopyBytes(uint32_t offset, int count) {
 		memcpy(((char*) &persistentState.persistentConfiguration) + offset, ((char*) &configWorkingCopy) + offset,
 				count);
 #endif /* EFI_NO_CONFIG_WORKING_COPY */
+
 	}
+	// todo: ECU does not burn while engine is running yet tune CRC
+	// tune CRC is calculated based on the latest online part (FSIO formulas are in online region of the tune)
+	// open question what's the best strategy to balance coding efforts, performance matters and tune crc functionality
+	// open question what is the runtime cost of wiping 2K of bytes on each IO communication, could be that 2K of byte memset
+	// is negligable comparing with the IO costs?
+	//		wipeStrings(PASS_ENGINE_PARAMETER_SIGNATURE);
 }
 
 static const void * getStructAddr(int structId) {
diff --git a/firmware/controllers/algo/engine_configuration.cpp b/firmware/controllers/algo/engine_configuration.cpp
index 620b81e322..baa11736bb 100644
--- a/firmware/controllers/algo/engine_configuration.cpp
+++ b/firmware/controllers/algo/engine_configuration.cpp
@@ -169,6 +169,8 @@ extern LoggingWithStorage sharedLogger;
 static void wipeString(char *string, int size) {
 	// we have to reset bytes after \0 symbol in order to calculate correct tune CRC from MSQ file
 	for (int i = strlen(string) + 1; i < size; i++) {
+		// todo: open question if it's worth replacing for loop with a memset. would a memset be much faster?
+		// do we care about performance here?
 		string[i] = 0;
 	}
 }
diff --git a/firmware/controllers/algo/engine_configuration.h b/firmware/controllers/algo/engine_configuration.h
index c9c3173124..550948181d 100644
--- a/firmware/controllers/algo/engine_configuration.h
+++ b/firmware/controllers/algo/engine_configuration.h
@@ -47,6 +47,7 @@ void setDefaultBasePins(DECLARE_CONFIG_PARAMETER_SIGNATURE);
 void setDefaultSdCardParameters(DECLARE_CONFIG_PARAMETER_SIGNATURE);
 
 void onBurnRequest(DECLARE_ENGINE_PARAMETER_SIGNATURE);
+void wipeStrings(DECLARE_ENGINE_PARAMETER_SIGNATURE);
 void rememberCurrentConfiguration(DECLARE_ENGINE_PARAMETER_SIGNATURE);
 void incrementGlobalConfigurationVersion(DECLARE_ENGINE_PARAMETER_SIGNATURE);