Obviously this comment is dependant on what your plans are, but having been to the Track Attack, where all the Machs are running PS4S.......these are totally fine for track days and street use, if you are not building a dedicated setup. The instructors absolutely flog the shit out of the cars on...
It is incredibly great for the track. Gives you 100% brake pedal attention, and works perfectly, every time. There may be a handful of drivers out there that can do it as good, but you won't ever do it "better" than the computer. The computer knows exactly what rpms the car requires on any given...
Very cool to see a local that actually tracks their Mach! I've had mine out to Mission Raceway, and had the exact same result as you had with the smoking brakes. The folks at Ford Performance recommend the Castrol SRF, as that's what they run in the Machs at the Mach 1 Track Attack. Would love...