RE: Gas RC was a mistake !!!!
Also, your knowledge of flight lingo is probably better than most instructors. You may have freaked him out alittle. I just read all your posts on this thread and it seems you have a good grasp of what you are trying to accomplish. If you can fly a t-28, my guess is you can fly a trainer no problem. I would just ask someone to buddy box with you the first time with the glow plane. Also have someone look the plane over for you before you fly so they can show you what to look for in regards to issues with glow planes.