I've often thought about a wing but now with a better back blade I could swing that off to the side, and I still don't. I end up using the front blade to roll the deep berms when needed. I drive the tractor centered on the berm of snow rolling it farther away from the drive. I keep the blade raised about 6 inches and keep the tractor moving a decent speed, and the momentum rolls that hard packed icy snow way off to the side. A few years ago we had much more snow than normal, and I had several parallel windrows of snow pushed off to the side. I moved them farther and farther off the drive as I needed more room. The more you work snow, the less bulk there is as it crumbles and crystalizes.