I don't yet but if I don't start soon I will have to quit the deer hunting. I am 60 now and I can't just grab the gun on opening day and go out and hike through the river breaks. I was a carpenter and builder most of my life and climbed ladders and roofs carring bundles of shingles and lumber. I am mostly retired now and its awful Damn easy to set back and take it easy. However That will soon have you wore down faster than working. The last few years I couldn't do much because of poor health (heart attack) during surgery. I have recovered to about 75-80 percent and its going to take a lot of work to get much further. I will Have to start by just lots of walking which ain't easy when its Winter in North Dakota. Have to go to the Mall or the civic center