well I had alot of trouble flying the cp pro stock out of the box but I have changed out the stock 9 tooth pinion on the motor to a 8 tooth pinion which lowers the head speed and to me makes it more stable, I added an extra set of flybar weights to the flybar, and im using e-flite flat bottom blades, I could barley do anything with the cp pro before, but after all this stuff I did, I can hover and do forward flight with ease, hope this helps