What to look for in a bolt in sprag?

Ok, here's some opinions, take em or leave em. I don't like low band apply valve bodies due to shift timing difficulties. I wouldn't really want to race a 727 without a billet steel front drum. I would never use a carbon fiber shield, I would use a blanket. A 12 element bolt in is a step in the right direction but stripping the cam is only one way it can fail, if I'm spending the money it would be a 16 element and 6 bolt is better than 4 so A&A would be my choice, I'm almost like Bob on this issue if I was just putting in a 12 element I would really second guess wheather it was worth the effort and cost for the improvement, but if I was going to race it It would have the A&A ultimate in it. But.... I run a glide.