I'm so frustrated! After much sim time and may hours of stick time since Christmas, I can now hover with reasonable control through a battery... The frustration come from trying to increase altitude to ~5 feet the servos start glitching causing the the copter to instantaneously hop up a foot or two then back down rattling my nerves and making it VERY difficult to control. I have tried to make sure that the x-mitter antenna is vertical which helps a bit but not completely.... trying to see if it need to be sent back to Horizon... any experience or suggestions?

Jordan