[darkside]

Jeff, could you explain how you can use a dual resivor master cylinder and it only work one set of calipers at a time but will work the second set when the first set goes out?

We are not wanting 4 calipers working at the same time, that will kill people! We are trying to make our cars safer in the case of a failure of the first set of normal brakes....like I had a BG last year and luckily the tech guy saved my life or at least my car by letting me keep the second brake handle in the car.