Mu2driver: I concur 100 percent with your statement. Check every possible cause that is suggested (and recommendation) and rule out everything before you totally give up on the plane. If after making any, and all corrections that you find are wrong, then try a lighter engine. If that doesn't make it fly the way you want it too, put it on RC universe for sale. Just fully describe the problems you've had with it and refer them to this thread for reference. I would suggest that you take a picture of it as it is the day you put it up for sale, along with the picture you have of it flying. As a matter of fact...... Just so you can sell it with a clear conscience, why not just auction it off! With a bid starting a $1.00 + shipping. I'll bet you'll be surprised at how much it will bring. Just explore all of your options before you decide what you want to do.