How much carnage, how many bodies, have the teams had to endure since nhra made this change? Nhra , you wanna slow them down? Then find yourself a pair and regulate percentage, blower size and amount, magnetos, or whatever you want that has to do with the physical aspects of the car, NOT the track. Make the track surface as good as you can and have. The crew chiefs will figure out their equipment. They already have data on all the track conditions. The thing that has always differentiated drag racing from the rest of motorsports is the never ending search for excellence. Take that away and welcome to your own mediocrity.