Just a bump to this thread.
Randy - if you're on, would love to hear if there has been any movement on this issue over at Tekin. A buddy and I that hang out at the track on practice days (when reverse is allowed) are getting fed up with delays, and particularly the timer that resets every time you try to reverse and we're starting to look into alternatives.
The solution that you mention above (allow reverse if RPMs are less than 100), or allowing us to programming the amount of reverse delay, or allowing reverse once the car has come to a stop all seem like good ideas. The one thing that I guess you have to be careful about is if you are driving offroad and adjusting your cars altitude in the air, you wouldn't want the tires suddenly going backwards.