YoYoJam DarkMagic
Thumb Grind (First Person View)
Start with a strong throw and go into a Man on the Trapeze.
Using the thumb from your non-throwhand, slowly bring it up and under the inner edge of the yo-yo letting it rest on top of the finger. As soon as it hits, the yo-yo will begin to precess around on your thumb.
  Try and guide the thumb around with it as best as you can until it falls off the tip of your thumb. Recall to your hand.

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