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It is important that this tension belt have some amount of slack so
that it drapes loosely over the whorl as it does not need very much
drag. If using the tension belt when slowly starting a ball on Roly-Poly,
you can knock the tension belt off of Whirligig once you have reached
a more moderate speed. (This is especially true once you have Roly-
Poly at higher speeds, to avoid unwanted tension/overly dense balls.)
