Greetings! I recently built my phantom 2 into a Flamewheel F550. I'm running a 4s 5000mah lipo with phantom 2 ESC's, Motors, and 9045 props. The hex flies fantastic, with no issues. I purchased some 9" carbon fiber self tightening tri-blade props and received them in the mail yesterday. I put them on and attempted to maiden with the new props - the hex now flies like its drunk. I have almost no control. I messed with the gains - dropping them from 150 to 75/75/100/130, 125 and 125. This had no effect on the flight characteristics. Has anyone else had this problem? Anybody know where to start digging to fix it?