Never had a problem with my 8611's, that is weird that you got that problem. I really cannot think of anything for you to try there. I agree with all of you on the lightness, I wish I could have it at 16 or less but... Thats one reason why I stayed away from a tuned pipe, adds weight and little to no power, unless you went with full tuned pipe which is too long, and not worth the hassle. I am happy with the plane thus far, granted I have not flown mine yet. It was better quality than Aeroworks. I used the CA hinges and have before on others without a problem, but there always is that first time. The covering, ugh, I wish it was Ultracote, the chinakote is a joke. Looks nice, but sticks as well as a wet paper towel.