RE: Which Trainer had Problems?
Not really what you where looking for. But I have been flying an RCM trainer and I would like to help you with some info on it.
Assembly was easy
Flight is good.
The covering on it is poor. Wrinkled up real bad and won't shrink back. It has also pealed in several places.
The packaging of the plane fropm the factory was poor. I had a broken part.
Support from the company I bought it from has been great (Hobby People)