The thing is have calibrated the esc, one at a time but maybe I should try all at once as well.
When I start motor A motor D starts to spin and continue to spin as long as motor A spins. Not with the same speed and like I said before it also hacks a bit, don’t spin smoothly.
The ESCs are Hobbywing and they haven’t been a problem with them before.
Thanks a lot for your help![/quote]
Sounds like a slightly different issue to mine.
 If you change motors to test - does the same thing happen to the same additional motor or another one?
 The motors spin smoothly otherwise? The hacking you describe is purely an electrical issue, like it ‘stutters’?
I’d also try the all at once method of calibrating the ESC’s, it may resolve your issue. Having said that I’d be worried that a PWM signal is getting to a motor not being tested.
Can you turn on logging while disarmed and try again and post up the results. It might have some information that leads us to find the issue.
The only motors that spin at the same time are motor A and D. The other motors behave normal when doing the motor test.
I’m away at the moment but tomorrow I’ll try to do another test and make a log file and post it here.