Got out mid day Sunday on the middle prong. Weather was great fishing was not great. Did see some very nice fish so I started stalking some of the nicer size fish in open pools, very difficult. spotted 2 nice fish hanging out in a deep pool after looking over the objective carefully I planned my attack working my way around and stealthily climbing a large rock. I was positioned perfectly my intended targets waiting for a snack to drift by. My best nyph tied on. As a set up to make the perfect cast my wait shifted from the toes of my felt boots to my knees. Well I as discovered promptly my waders have no traction at all on the large bolder that I was perched on. I do not believe I could have rocked any faster down the rock at the terrified trout, rod and real clattering away I managed a turn that would have made an acrobat proud. Well nothing was broke (rod or real) back and ankle a little soar. But no one to my knowlege saw my close call. Leasons is fine goretex waders are slicker than you know what. Be careful I got lucky this afternoon.