I'm 57 and just got my ewo1 stick last January. I have since put the UP platform on it. I timed myself last February and was at the 12 minute mark, going up 25 ft. and rappelling down. I still don't have the system nailed down just yet, but I should be fairly proficient by the end of the season. I use three rubber fender washers (1/4" X 1 1/2") on my rappel line (Cannon CI V). 1 to hold my D ring in place and two to grab and pull my tethered loop up the tree.