"Riesen's Rebound" - new trick? Juggling Tutorial #39

I may have invented a trick! As always, there is a high likelihood that it's been done before by someone else. I haven't seen it, in any case. It features what could be thought of as the ball equivalent of club slapbacks, which I call rebounds. I would love to see people juggling this better than I can, and hear what you think about it! Thanks for all of your support.