I've been flying with a pretty forward CG I guess - it balances on the spot suggested in the manual, but really noses down w/o elevator and noses down during the inverted 45 climb. I dropped to 8S and still am moving packs back. I have really light mini servos in the stab which really aren't helping here. I'll see if I can get the balance point where I like it w/o changing any of the servos or adding weight. I think it will really help the fact that I've never felt locked in, nor had much success with slow rolling maneuvers.

Velco, what are you using for batteries? I found that my 10S 4000mah packs weight less than my 8S 5000mah packs, so 10S can theoretically be lighter for the same power and flight time since we use less current that way.