I have the old style GD super surfer which I use to cut 1 of my lawns. The place is on a hill. I sometimes start at the top and work down, or other times I will start at the bottom and work up. The house as well as some other things are at the bottom of the hill. So if the machine loses its hold of the hill it's a COSTLY fix. I go across the hill as going straight up would result in it flipping back, and going straight down would result in crashing through the front door. I have been finding that when I go from left to right I can hold the hill no problem. However when I go from right to left, the machine loses its hold of the hill and I go for a ride down the hill with it. I have come VERY close a few times to doing damage. I find that when I lose control if I just push my left wheel as far forward as it will go I can regain some control. Does this happen to anyone else? The lawn itself is just sloped down for the most part with some very shallow low spots every now and again, but not bumpy at all.