I've been to both Rod's and Rick's classes, and as different as their releases may be, the one thing they will both tell you is the importance of having a subconscious release. In other words, no conscious decision or movement is made to release the string.
Rick says, "Hold, hold, hold, and wait for it to go off."
Rod says, "Continue to increase back tension and the release will happen."
For many people, just understanding the concept is enough. I am one of the fortunate ones, and don't have to think about releasing the arrow; it just goes off. I don't know about Rick's other students, because he teaches one-on-one, but in the class of Rod's I attented of about a dozen people, there were two people who seemed to have trouble with the subconscious release. One seemed to pick up on it after a little personal coaching by Rod, and the other one seemed to have a harder time with it.
I seem to have an easier time triggering the subconscious release using Rod's dynamic release than Rick's static release. There's something about increasing back tension that triggers it for me just about every time. When it is triggered properly, the first thing I'm aware of is my string fingers touching my neck or shoulder and the arrow is already gone.
Problems I still have with the subconscious release are rushing the shot (the subconscious release goes off too soon) or plucking the shot (I'm not sure why I do that, probably nerves, but when I do it's pretty obvious: my hand ends up in the air as if I'm waving to somebody). Neither one of them happens very often these days, but when they do the cure seems to be the same: turn part of the job back over to my conscious self, at least to the point where I'm in allignment at full draw and ready to begin balanced pulling to conclusion, and then turn the job back over to my subconscious self. It sounds a little weird, but it works for me.