There is a thread on M4C here:
http://m4carbine.net/showthread.php?p=1159116
by ssdsurf discussing advanced trigger technique/skills. He goes into a lot of detail in his video (linked in the thread) on how he presses the trigger and discusses things I've never considered before. I was hoping we could get a parrell discusion going on here on the same subject. For instance he talks about breaking the shot in the middle of the arc of your trigger finger movement so that when the shot breaks the presure on the trigger is straight back. He also discusses shooters being mis-diagnosed by trainers who simply say they're putting too much or to little finger on the trigger and not looking at how the trigger is being pulled or what's going on with the grip.
I know a lot of these topis have been discussed before (reference section and other threads) but hoped they could be rehashed/expanded upon here and maybe squeez some more info out of the folks in the "know".