I have already put about 1200 rounds through my "new" Bushmaster M4 (14.5" w/Mini-Y) and have not had a malfunction yet. It's a great weapon!
The Y-Comp is destroying the hearing of all those who shoot next to me. I have been thinking about sending my barrel to Kurts Kustom and having his A3 TacBrake installed. Has anyone else done this? I know that it will help with the "look", but does it redirect the blast as well? Post pics of your KKF installed weapon if possible.