I have owned the Black Max, Black Knight2, Iron Mace, Synergy, Black Mamba, an XForce6 and now the 82nd.
I shot the GTO, and although not as fast as my 82nd, I probably would have bought one but, did not like the wait period for a Lefty.
The APA Black Mamba was the fastest outta the box I have owned and the 82nd and XForce6 were about dead even in speed although I didn't care for the draw of the XForce.
The 82nd is the one I shoot now and really like the way it draws, holds, and looks compared to the APA.
When I went home on R&R, I was getting 326 FPS (350gr @ 28.5"/70 lbs) outta it before I had it re-stringed and tuned by Mike Carter.....should be even faster now.