I just shot the first 100 rounds through my build 1911 and noticed that the slide stop pin seems like its worn a lot already. There are flat wearmarks on it where the barrellink rides on. Is this normal or a sign for a bad quality part? Also, my slidetop pin is fairly loose in the framehole, should I see about getting the "proper fitting" one? I just can't seem to think that it should see that much wear after just 100 rounds!?