Did he mention if parts are coming? When do you anticipate a maiden? BTW mine, electric with a 30-40cc equivelent set up on 12S needed no additional weight to balance. It was very quick, I fly a lot of very fast planes so I won't say fast, but for its size it was moving pretty good, I'd say probably 120-140mph. Pulling 3500W. I reengineered the tail wheel set up adding an aluminium extension that has a better bearing and a slight angle so the pivot is at a better angle. Also a different tail wheel yoke that is down both sides of the wheel with a C clipped axle. It was the gear I had from an old Sig Rascal 110.