I finally completed my build, Xaircraft X650 V4, turnigy 2826's, turnigy 30a plush esc's, WK-M & Spekturm DX8. Problem is that when I fire her up, 2-3 of the motors spinup, once I hit 50% all the motors fire up. I lifted the unit off the table while the motors are spinning and tip her to the...