I'm truly not a 3D pilot though I try some stuff. My twist was tail heavy and I had to add weight to it. Over time most of it has come off and I just keep flying it. Maybe it's like the frog in the pot. He supposedly get used to the water as it boils and doesnt jump. I've got the wood glued in to mount the battery to, and it's fixed so I can move the battery fore and aft about an inch either way. I'll mount the wing and tyrap it in and then cover over the spot. If I need to access it I'll just cut the cover again.