Tq bullets do fit well, the bullets smc sells fit better. I grab a hand full whenever I order lipo's. After a little use they wear in a bit and its not as tight of a fit to get bullets into. Tight is better than loose, I don't know if you guys have had a bullet get worn and squished in too much (waited too long to replace bullet) and then melt one of the ports from the slight arcing that happens but you are much less likely to have that with a smc. Happened to me with a nano tech and a reedy and I haven't had it happen since I started running smc a few years ago.