Differential Thrust Flysky FS-I6X and FS2A

[6040]

Hi all
I am trying to set up differential thrust with a Flysky FS-I6X and a Flysky FS2A 4 channel receiver. Can this be done?
If I look at the display to test the Mix it looks correct to me. Both Ch2 and CH3 move in the same amount.
However the second motor (on CH2) only spins up after having the throttle more than halfway up. So this way they are way out of sync.
I already tried a different ESC, motor and swapped the connections (CH2 / CH3)

Here is what I have so far:
Motors connected to CH2 and CH3

Mix 1
Master CH3
Slave CH2
Pos Mix 100%
Neg Mix 100%
Offset 0%

Mix 2
Master CH1
Slave CH3
Pos Mix 100%
Neg Mix 100%
Offset 0%

Mix 3
Master CH1
Slave CH2
Pos Mix -100%
Neg Mix -100%
Offset 0%

This is doing my head in, so any hints would be nice.
Cheers
60/40

 

[leaded50]

 

[FlamingRCAirplanes]

Master CH3
Slave CH2
Pos Mix 100%
Neg Mix 100%
Offset 50%

 

[FlamingRCAirplanes]

And the deadspace is fixed by calibrating your ESCs.

 

[FlamingRCAirplanes]

Mix 2
Master CH1
Slave CH3
Pos Mix 50%
Neg Mix 50%
Offset 0%


Mix 3
Master CH1
Slave CH2
Pos Mix -50%
Neg Mix -50%
Offset 0%

 

[6040]

Thanks a million for pointing me in the right direction, it was the ESC. I did not know you could program these little things. Here was me thinking two ESCs bought from the same source would have the same values.

Cheers
60/40

 

[FlamingRCAirplanes]

No problem, hope that fixed it for you.