[Al Skierkiewicz]

OK,
I will bring this up but consider that rotating devices do come under the Safety Rule
R08
ROBOT parts shall not be made from hazardous materials, be unsafe, cause an unsafe condition, or interfere with the
operation of other ROBOTS.

A greater concern is materials used for friction on the rotating device. Please be sure that you have chosen wisely when you assembled your spinner/wheel/tire. Some of the wheels used in the past are not meant for the high RPM you may be running on your shooter.