I just want to share my experienced on my first Level 3 match, I finished 2/3 stages on the first day of the match without having problem with my gun, and then on the last day of the match (first stage) I had a hammer fall, but the Rang officer didn't noticed anything. And then i moved to the next stage, suddenly hammer fall strikes again, this time the Range Officer stopped me and he DQ'ed my gun (Luckily he only DQ my gun and not me :-). A friend of mine borrowed me his back up gun (same spec as mine), but my ammo did not work on his gun. so i gave up on the last 4 stages. The only reason causing the hammer fall is the small screw on the trigger, I had a very tight overtravel on the trigger, it was like 0.5mm. First thing i though that the hammer causing the problem, but it wasn't.! Everything was my fault, I messed up with that screw a week before the match without knowing what i was doing. Lesson learned. Alvin