Ed -- The only problem with this yo-yo is that it's too nice to use! They're like those very fancy china dolls that are not to be played with (according to my aunt who collected them). You've taken a simple child's toy and turned it into a work of art. That takes real talent. Very well done.
I know you make other yo-yo's that can be played with, but the last few you've shown are simply too nice for that. They're destined for a prominent place of display.