What are you planning to hunt that you feel the need to make these changes?
I don't plan on hunting anything different but I'm the type of guy that If I think I can better my set up I'm going to do It. I've never really had any problems. I remember what you once said one other time (don't fix what Isn't broke) I'm really not fixing something, I'm actually just tweaking my same set up a tad In hopes of uping my percentages of something bad not happening. This FOC stuff makes allot of sense. All I did was throw a bigger and heavier BH (same BH but bigger and heavier) and get my FOC up some. It's still not as high as I wanted It to be but this will do for now. I do elk hunt out west so the higher FOC will help me for penetration using a 3 blade head. I've also noticed that my arrow flight so far has been perfect, not one kick out of my arrows like I'd get every once In a while before. I know my release Isn't the smoothest one out there but with the added weight on the end of my arrow that right there Is straightening my arrow out and hiding my bad releases here and there.
I do understand where your coming from though JRW. If for some reason this set up doesn't work this fall on a bear (hopefully I see one) I'll then go right back to my old set up. A little experimentation you could say, one doesn't know till he trys right?