[Graham]

You said previously that your magnet checker is 8mm away from the motor, is that what you're still using? 

It depends how far off the track you're measuring magnetic downforce, 2g at ride height distance is very little but 2g at 8mm distance isn't the magnetic effect the motor is going to have on the track. 


Our clubs mag checker and my own device measure the magnetic effect at track level, with these cars that's 1.5mm airgap.

I am measuring all the cars entered for Magnetic downforce and we will see what happens during the series, if the performance of the car has no relationship with track types ( wood v’s plastic) we can rest easy