CG is much better with this battery, but still a little nose heavy. I think I'm going to change the ESC to a 20A unit before I do anything about the battery position. Weight difference between 20A and 30A is about 9g, so that should help nicely with the CG. The 20A is rated for 30A peak, so I think that'll work out fine. I think if I use a 9x6 prop I'll have to stay with the 1250kV. 1400kV should be fine on 9x4.7, though. 9x4.7 props are much easier to come by (and I already have a bunch), so 1400kV + 9x4.7 is a better combination than 1250kV + 9x6 as far as that goes. Decisions, decisions. :)