I would like to try more tension on the transmitter sticks. His radio doesn't allow easy adjustments for that. (futaba 6ex) My student is 84 and a former Air Force pilot. He has flown the B-29 converted to tanker and nearly all of the multi engine prop cargo planes. He flies the pattern quite well and has made more than a dozen decent landings without my intervention. I believe if we can straighten out the take off run a bit he could solo this summer.