The stick has very light tension on it and it is easy to do if I don't pay attention, but I do use this TX for 4 other models ok.

It sounds like you may be saying that this is somewhat "normal". I've checked things over once again and still can't see anything obvious to my inexperienced eye. I'll fly it some more and pay special attention to the symptoms. I'm interested to see at what point in elevator travel I get the sharp roll. I haven't even made it to a loop yet on this , it doesn't get that far. A nice steep climb will cause the roll to right.

I appreciate all the ideas , even if they aren't what's going on with this particular problem I can learn from them. I wish I could get a video. Hey, I just might have to get some real live help on this one. I'm always by myself.