I can tell people that havent driven with the old single.Back then that is what they had.Ive lost brakes a few times with them.Not a very good feeling.Now Im one of the guys that hates change.I was still running point in the race car till a few years ago.One of the first things I did was go dual master.That and discs on the front.Yeah the brakes wont be great on a dual if you lose 1/2 the system.But you will still stop.Look at the old model A s.They still had mechanical brakes.Even the Ford club let people convert to hydraulic for safety.Rocky