To apply the greaseless I use the on/off method...or, since I use a slow (1/3 hp 1350 rpm) motor for greaseless, I hold the stick against the wheel with pressure, _then_ turn it on and use the pressure to control the wheel speed. Will eventually burn out the motor but they're a dime a dozen. BTW I use 80/120/220/320 and they work great, but might try going to setup wheels instead since they are more permanent.
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