Well I'm stumped. I tried the reversing throttle trick no luck. I am running a sensorless motor in it so that should not be an issue now. Delayed full throttle still. It has good partial throttle no cogging, I am talking when you stab the throttle full right away, I get the delay.

Radio adjustment perhaps? I am still learning all of those, its an Airtronic MX-3X.

I think I am going to hook up another LRP sensorless ESC I have and see if I get the same issue.