@Tbub, I'm a good bit older than you and switched to double boots several years ago. I had trouble getting up for a while because it hurt my back. One foot get ups never hurt my back or my hamstring. After while with the doubles, I learned that leaning forward so far that my chest rested on my front knee and letting the boat do all the work (not trying to stand up for a long time) eliminated the back issue and also gave some stability. I didn't notice any hamstring pull ever, but I'm not sure this method will work for you. I'd say it's worth a try, but let go at the instant you feel a hamstring tug. Hamstrings take too long to heal. Don