ORIGINAL: retired911guy
I have no beef with Nitroplanes, as my experience has been pretty good.
While Raidentech is the parent of Nitroplanes, don't associate the two when it comes to problem resolution.
I will not order from Raidentech, but I've had nothing but good experiences with Nitroplanes and I just ordered a few MORE planes from them... hmmm... seven now?
Re: Tail Motor
The easiest way to do this is to heat the gear with a flame, or light propane torch.
While it is hot the gear will slide right in, but it cools VERY quickly.
Once cold it grips quite well, though a micro drop of CA blue on the shaft of the motor will prevent the gear from turning.