I am not going down this road again....Sorry.

However, I'd say this much IBO isn't real world.

And Archers Advantage is good for arguments.

Your draw length and shaft are likely the culprits. (and you are correct in that your efficiency is suffering, due too these two facts) As far as cam timing, can't say unless I had it in my hand or better yet my eye while you shoot. But you should know if it is off that bad.

I'd say most bows are closer to yours than the IBO....

Darn it, I said I wasn't going to do this again.

I'll leave this to the younger guys to hash out.

Good Luck. If you don't get any satisfaction....Shoot me a PM. I know a guru shop owner here in WV that shoots that particular bow. He may have a tip or two.