You can also control multiple cards with an overhand shuffle control as well. In jog or Out jog.
While it's a nice idea and I'll give you credit that, other than that it looks awkward and ham fisted, and the ability to do so has been around forever and there is a reason it's been around forever and is still used be people today.
I'm sure it works great, and it looks fine. Changing the injog or out jog to a bre** and moving that bre** off of the thumb to the fingers is something that Marlo experimented with I believe. While it is effective, and deceptive it isn't terribly original. I love experimentation and tinkering though