got my hands on a prototype truball back tension release last night. should be coming out in january. all i can say is holy cow - microadjustability, a pivoting head, and the machine work is incredible. the ergonomics of the handle are also greatly improved. much easier on the fingers. wait until you see the new head. can't frikkin' wait! i didn't get to take it home - its staying at the shop for bt shooters to evaluate.