Quote:
Originally Posted by Ether
It would be most interesting to hear from teams with effective 2-roller ball magnets whether their bottom bar a) is fixed and does not spin or b) is free to spin or c) is motorized
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We have a very effective one, and the bottom bar does not spin. You really don't want it to - if it spun it would back drive and the ball would simply squirt out when you tried to back up.