Motor always faster in reverse?

[lifeofbrian]

I have a Hobbywing QuicRun 120a ESC a connected to a Turnigy Trackstar 7.5t Sensored motor and no matter what I do (apart from switch the motor wires and go sensorless) the motor always goes much faster in reverse.

I have calibrated the Throttle range as per the manual in every way I can think of, with the TX channel 2 reversed and normal, calibrated the throttle reverse instead of forward. It always ends up with the reverse much faster?

My TX is a Flysky FS-GT3B.