ORIGINAL: Bugalooob
I bought the plane used without servos and engine off the rc classifieds and the guy said he flew it like 10 times, I asked if the CG in the manual was right( I had problems with other planes before) ..he said it flew great at the exact CG in the manual...I used the same downthrust angle he had on the plane,...I don't know whats going on with it, I'll move the CG ahead a bit and see what happens...I still think with all that elevator he overcontrolled it
It sounds like you got one of those self appointed "flight instructors" that I ran into some years ago. You know the type - badge proclaiming they are a flight instructor, etc. Problem is, all ours were good at was crashing other folks models. A decent pilot would not have been caught by surprise with a model hanging over the pits in a hover. Sorry, but sometimes you have to tell the truth. I'd find someone else for the next test flight.
Ed Cregger