I wonder if any one can set my mind at rest. I have a M14x1 threaded .308 and don't have the cash to put the intended SL5 on it yet. However it has a thread protector which is fine but is not long enough for the thread. I know there are barrel harmonics and such so my question is this: Do I screw it right down to the bottom of the threads or does it not matter. I'd rather protect the end threads and until the Mod is funded I don't think screwing it down tight before each shot is practicable. Might be nothing but if anyone has an opinion or experience I'd be pleased to hear it. Happy to replace it if that would be better?