Actually, all the demonstrators were required to also do spintops after 1961. If you look at the Bob Rule archives (
www.mryoyo.com), photos with tops are as common as with yo-yos. A few from Bob's site:
Skeeter Bee
Harry Kelly
Don Davison
Others that appear with tops on those archives: Bill Anderson, Fortunato Anunciacion (Filipino?), Dale Bassett, Dave Emerson, Quentin Kelly, Tim Kelly, and others, including "Mr Spintop" and Bob
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