[chappyman66]

Generally speaking, removing winds (dewinding) tends to reduce resistance of the arm, thus increasing speed.

However, that is VERY general.   The relationship between wire diameter, length (# of turns), magnet strength, and air gap all work together to create motor performance.  

If you really want to experiment with motor performance consider shimming the magnets.  This will increase torque and reduce RPMs without having to change the wiring of the arm.

I have done rewinding of vintage arms....they worked fine and were fast but less brakes until I shimmed or changed magnets.  So it's a balancing act.