ORIGINAL: Neurotex
The CG was about an inch behind the cockpit. But since you have a heavier
battery I'm not sure where it is now.
I should've worded that different. The proper CG for it to fly at its best will remain
the same on the jet. Adding the heavier battery will upset that balance and make
it nose heavy. I would try the original AA lipo, at least until you get it flying right.
It's more than enough to power the N20's.