Charlie,

I had a student with an RCM and I experienced all the things you said and worse. I think his control set up was a little loose because it flew like crud. If you made a sharp turn it would take a few seconds of correcting to get it back to flying straight and level. (yes it was in trim - as good as it could get) I agree with you about the plane for beginners. It is a sharp plane and they sell for dirt cheap, but I think there are much better "trainers" out there.

Jeff