Review on Exploring the Spintastics Tornado Ball Bearing Yoyo: Unleash Your Skills with Enhanced Precision and Speed by Kyle Wesener

Easy to roll yo-yo with no bearings between index and middle finger. But I quickly realized that you couldn't do that with a ball bearing. Instead you have to wrap by hand with the loop sticking out of the groove to get enough friction. In about an hour I did the circumnavigation, the dog walk, and the trick where the yo-yo comes out in front of you and comes back quickly. Will work on other tricks.