So I picked up 2 new 10rnd mags for the C9. Noticed they did some adjustments to the feed lips on them. hm. Anyway, they like to jam on the 9th and 10th shots. Not always, but a lot of the time. Adjusted the lips to see if that'd help, but was curious if anyone else had the same prob. first 8 shots were always perfect, it was the 9th or 10th one that'd usually jam (not always) Edit: Noticed that the last 2 rounds would nose-up with just the slightest amount of pressure while in the mag. Modded the feed lips to correct that as best I could (still does it slightly, but hand cycles 10 fine now.) Problem now is...the first 2 are a bit "stiff" coming out of the mag, even after smoothing the edges. Guess I'll let the springs break in more and see what happens.