When I do it that way, it must be even farther back to balance!

I'm stumped. I can move the ESC back a little, but I'd have to put the RX batteries under the stab to get it to balance with the battery packs in a more "normal" position.

I must be doing something wrong. All the components are the usual stuff a lot of guys are using, and I can't imagine the tail group on this one is so much lighter than the others.......... I dunno...