I've got a question regarding my great planes at6. With too much elavator it'll try to roll over to its side, unable to even complete a loop. I've lessened the elavator and it's fine, but i was wondering what this problem is called and what needs to be done to correct it.. I thought it was called control surface stall but my searches aren't coming up with anything. I fly realflight G3 and this question comes up again because i notice all the warbirds are suseptable to this.. Any info would be appreciated.. thanks

brandon