I have the cap with a zdz 80 and having enough power isn't a issue. Its plenty, for the cap. All my servo's are in the stock location, and my battery's are right around the CG. No Balance issues here. I have also watched two others set up with a zdz 80, and they flew great. It was watching those two planes that made me want the same combo they had.

I only have 7 flights on mine as I just finished it, but even with that low run time on the motor, I have plenty left over for pulling out of trouble.

I have noticed with this plane. If you could tape the elevator, stick all the way back, and set the throttle. it would harrier itself. (almost anyway)