Was flying a 60 size cub yesterday and was getting ready to land. Started to turn base and cut the power. All of a sudden the plane started to roll over (later found out it was a tip stall) corrected with rudder and ailerons while holding full up. YUP, full up, plane tip stalled in the other direction, again corrected the same routine as before, now losing altitude over trees, corrected again with the same results, one of the club members grabbed the tx and added power, released the elevator and saved my cub. Thanks to him I will be able to fly it again. Thanks Dave. I was so busy trying to correct that I forgot to release the elevator and add power. I put it up and flew my stick the rest of the day. Had he not been there I would probably still be climbing the trees.