I flew a friend's electric Integral last week and it had some strange characteristics. It took some up trim to fly level but would still climb (go to the belly) inverted. We moved the cg forward and at least got to the point where you didn't need to hold up elevator to fly level inverted. However, the plane still wanted to go to the belly on vertical uplines. One thing he did was put the battery pack in the chin cowl so it is well below the thrust line. I thought that might contribute to the push to the belly in uplines. Where did you mount your battery? Did you change the wing incidence or thrustline? Any other ideas?
Jim O
PS The plane flew well enough that I went home and ordered one.