ProChargers may be centrifugal superchargers like turbos, but I don't think the crossover appeal will be all that high. Unless the active rules package puts turbo cars at a competitive disadvantage, there will be plenty there. Staging isn't bad anymore now that bump boxes are dialed in (it's been awhile since the days of lurching them in the beams). They're also generally easier on parts than cars with crank-driven superchargers. In TD, a lot of the initial ProCharger boom was from nitrous guys who don't like roots blowers switching over, but PM is already down to the diehards there, anyway.