I had an E-Stopp parking brake system installed in my '66 and decided to give it the ultimate test. I took it in front of my home (I live in a hillside area), engaged the E-Stopp brake, put the car in neutral, removed my foot off the brake and lo and behold -- the car rolled down the hill. I had the shop where I got it installed tighten it up and I tried my test again, and same results. I then tightened it up myself and tried my test again, and same results. My question is: Should that happen? What is the point of a parking brake if it cannot keep a car from rolling down a hill? Should I have stuck with the manual hand brake (albeit I did not do this hillside roll test when I still had the manual hand brake)? What are your guys' thoughts on all of this? Tips? Advice? Suggestions?