Answered: Cutting down gold motor nubs

Section R15 in the Nothing but Net Game Manual states the following:

<R15> Parts may NOT be modified as follows:
a. Motors (including the internal PTC), extension cords, sensors, controllers, battery packs,
reservoirs, solenoids, pistons and any other electrical component or pneumatics component of
the VEX Robotics Design System may NOT be altered from their original state in ANY way.

In college VEX, however, it is legal to cut down the gold nubs on the motors to make the flush with the black sleeves, according to our mentor. Would this be legal at the high school level to do?

This is legal modification in VEX U, however it is illegal in VRC play.