No but...............
I have never seen one of them before, but I wish that I had seen one earlier in life. I do not run in the electronics class which uses a delay box. The delay box is the safety valve in the electrical system from accidental T.B. activation after the launch. The idea that this switch can be on the steering wheel and not accidentally activated by roaming fingers during the run is outstanding. I am sure it is expensive, but if hitting the TB button during a seven second quarter mile run gives you the heebie geebies like it does me, this gizmo might be worth figuring out your new launch timing for the safety factor it should give.
Bruce