I bought the alpha 40 a few weeks ago and I have flown it several times. Today the wing wanted to pull up. I put a 11x6 prop on and it pulls a lot faster, but it is putting too much force on the wing. I replaced the rubberbands and it was fine. IS there a wat to keep the wing down besides putting new rubberbands every time. Also, I bought the low bownce tires and it still bounces a lot. It always comes in for a landing fast and bounces a few times. Is the stock landing gear good. Is that spring in the front making it bounce? Also any other advice on this plane would be much appreciated.