Rudder deflection controls the speed of the snap in this setup. Everyone I fly with flies with Bryan's setup, and we all have to switch to low rates for our snaps. What this setup does for snaps (and spins) is makes the airplane stop cleaner with no need to lead with opposite rudder or perform miracles with the sticks in order to keep the airplane on line. The further back the CG is, the more unstable the aircraft becomes, in this setup the airplane will be more stable, lock lines better, and most importantly for your question it will recover from the stalled conditions of snaps and spins more cleanly. If you doubt me or Bryan (granted, we are biased) a few months back Brett Wickizer of the US team posted that after trying it both ways, he felt the airplanes snap better with a more forward CG. Trimming a pattern plane is a delicate balance, luckily Bryan has done all the legwork and has been kind enough to share his knowledge with anyone who wants to use it. I talk to Bryan about once a week, and any time I question something he tells me, his response is simple: prove me wrong. This is the same challenge he has made to anyone else who doubts what he has found to be correct. Try it, I can promise you that if you think you've proven him wrong, he will be able to tell you exactly what you did wrong, and what to do to fix the problem. The biggest key with his trimming concept (it doesn't really qualify as a chart) is that if you skip ANY part of it, it will not work.