ORIGINAL: John Redman
The ''new'' E brake is a refined brake system that BVM sold back in the mid 1990's. Back then we used JR 2721 servos to activate and they were barely enough. It calls for the 8411 now which work excellent. BV developed this system a long time ago and removed it from the market when the dual rate brake valve came out which was followed by the Smooth Stop.
I think I still have the cylinder on the plate in a drawer from the original BV set up. You are right though, it WAS barely enough. I also had the Fio brakes, where were hydrolic and I could never get them to work.