To Texrotor: The only thing that has changed since I made that post over a year ago is that in May of 2012 I swapped out the ESC's and put in the Castle Creations Phoenix 25amp ESC's, utilizing their new multi-rotor firmware. I have literally hundreds of hours of flight time on my CX-4 and it still flies perfectly every time! Oh, and I now use the Xoar 12x5 electric wooden props.