You guys walking about the banks made me laugh. Shit's tough ain't it? I did roofing for 15 years. A 22 degree slope is a 5/12 roof pitch which is basically flat. The steepest roof I ever worked on was a 14/12 which is a 50 degree slope. Impossible to stay on without a rope and climbing harness. The steepest I can stay on without a rope is a 10/12. I still go back to my old job and work when they need help. The tendons in my ankles and my calf muscles will be hurting so bad the next day. I can't imagine driving 100mph on such a bank. The G forces must be incredible.