If you're seeing glitches... be SURE to get them under control, at any throttle setting, before you let this thing in the air! I had a similar problem on an AW 90-120 yak, thought I had it fixed, and found out the hard way that I was wrong. It turned out to be a bad ignition module, emitting too much RFI, but it cost me a plane to find that out.

If you're still running 72MHz, be absolutely sure to eliminate any interference... If your throttle servo is less than a foot from the ignition module... move it back! That plane's got plenty of room to mount the servo back, and you can use nyrod to get to the motor.