muzzle devices ar15

Well I know a lot of you own ar15s, some shoot them more than others but if you shoot them a lot or plan on competition shooting them you know recoil is a big thing. and being able to get back on target fast is KEY. I have researched a lot of muzzle devices for 223s and I bought one when I bought the gun. The JM its a 40 dollar brake and for 40 bucks its bad ass. this is a video of a half mag dump, you can see how little the muzzle moves.

http://www.youtube.com/watch?v=TlOHvMP5Fyw


but I just ordered the SJC Titan. after weeks of research Im pretty sure this is the baddest muzzle brake that's reasonably priced (under 100) ill be posting videos after I get it this week. but heres one on a full auto lower
http://www.youtube.com/watch?v=0t-Qne8-h5Q


What muzzle devices have you guys tried?