Made some modifications to my pulk. Added ski rails made of aluminum angle iron, to keep my sled from sliding side ways on side slopes. Works like a charm. The skis rails usually are more like tail fins but I thought longer ones below the point where the weight is heaviest would be better. I used a rubber gasket used on doors to cover the bolts on the inside. The harness is one inch tubular webbing twisted in a figure eight like a climbing chest harness. When hauling a heavy load I use a carabiner to keep tension on the front of the harness but most time I go without it. I prefer not attaching the sled to a hip belt because I live in steep terrain and it’s inconvenient to remove a belt when descending hills. I plan to purchase a longer sled and make the rails full length. Planning an overnight in the Adirondacks before end of winter. Hope you all enjoy this post.