Originally Posted by HighLife420

Sounds like the servo horn....take the horn off the servo, turn on the radio, center all your trims....get the horn as close to 12 o'clock as possible. From there, you use SUB trim to center it perfectly....you can use TRIM (not sub) to make adjustments on the fly.

Im not sure on the ESC, but why would you want to calibrate the ESC without the motor? If i had to guess, yes, it should work. This is just a guess though.

Hope this helps, welcome back