A/DA is the same as A/D, but A/DA is a new, automatic class. We are running Super Comp now, but have building the Comp dragster on the side. We originally planned on running A/D with a Pro-Trans, but when they announced the new class we took it as a sign. Unfortunately, we won't be getting the car finished until December or so. I'm curious to see if there are others who plan to run this classs.