Those book suggestions are good ones. I’d also throw in G. Fred’s Advanced Instinctive Shooting. I didn’t read his first two, but that last one really helped. Also, check out the fine videos by George Stout and Moebow. Also, cafefully read the tuning threads on this site. They are have been a big help to me.
I’ve been enjoying the FOC discussions. I don’t have any archery kills yet, so I cannot speak from experience. I will say that I’m having fun playing with the arrows in regard to FOC and seeing how they will shoot.
Have fun with it!