RE: How many good bowhunting years...
I'm 56 now. Already had to drop back to a 60# bow. Maybe ten more years will have to learn to like a 50# bow. I'm thinking this will be a gradual process. Right now, some of the stuff I see Cameron Haines doing is a little above my physical limitations. But I know folks who have had sudden life changing health issues - that resulted in a big garage sale of lots of high end gear. I would say that enjoying every season like it might be your last is a good rule to live by at this point.