the only issue is i have read time and time again horror stories from guys buying these remanufactured Hydrovac systems and going through a couple till they get one that works. Let alone getting a master thats been remanufactured 30 times over with the same stories. Seems like they guys has a pretty good system and then let alone you put a proportioning valve inline, so if you loose a brake line your not dead in the water relying on a transmission emergency brake. Seems safer to me but i may be overthinking it.