That's great thanks Baker, it is the older gold band (short) motor I'm using in our 1/12th class, we rn 0' timing on the esc so I thought I'd play about with the motor timing to try and get a sweet spot in our limited gearing range.
So if I go +4 on the endbell and +1 on the sensor board I should have 36' of additional timing and with a maximum of 48' available to me I was previously only running 12' (0,0).