For everyone having button issues with the 8, I believe the fix for it is just a matter of tightening the little gold contact screw inside the button ALL the way down. On mine, when I took the button assembly out and tightened that little screw inside the button, it would stop when there was still a gap in between the screw and the back part of the plastic button assembly, and it looked like it should still be able to screw in until it's flush and there is no gap in between the screw and the back of the button, but it seemed like it was all the way screwed in already bcuz it got really hard to screw it in anymore. Well it wasn't all the way in!! I had to hold the button assembly really tight in one hand and actually crank on that little screw with a screwdriver until it was ALL the way in and flush and couldn't possibly go in any further. It wasn't mis-threaded or anything, but something was stopping it from screwing in all the way. And that little contact screw has to make contact with both the top and bottom gold contact pins that are in the top, at the same time when u push the button in, in order to complete the circuit and make it fire. So the further out that the gold contact screw is, the further in and harder u gotta push the button in to get it to fire!! I hope that makes sense to everyone bcuz that simple little adjustment and now mine is firing like the BEAST that it IS and was meant to be!!! And I don't hafta push on the button until my thumb is sore just to get it to fire anymore!! It's actually pretty easy to fire now!! Not so easy that it'll fire in your pocket, but not so hard that u gotta push the button until your thumb hurts. It's perfect now!! Hopefully this is the same issue that everyone else is having too, bcuz the fix is pretty simple. Hope this helps.
-Now my only issue is that my logo doesn't line up perfectly on mine!! It sucks bcuz it's messing with my OCD pretty bad too. Lol. Idk if they would switch it out for me just bcuz of mis-aligned printing/engraving tho. :-\