I hear you Sabotloader, but I can't see a problem. Actually, I do this with the Mustang. The plug doesn't have any "wiggle" when it's backed out (just a tad - probably a little more than 1/8 turn from fully seated) and, after all, the plug/primer are tight against a solid steel breech face so I don't see how it could be pounding the threads. I don't bother with the X7. It's so clean that I just snug the plug against the stop.