I have been shooting longbows Hill style since the early 70s, some them extremely stiff. A couple of years ago I bought recurve that was only 45# at my draw. I tended to reboot my old target form with it. After all of those years shooting that swing draw with no holding time with no shoulder pain, I found that I needed to hold the recurve back for several seconds to be accurate and it snuck up on me, a hitch my shoulder. I recovered, shooting with either hand, now, and only shooting bows that I can maintain that swing, draw, anchor, release rhythm, there are no new shoulder problems, my new J D Berry and wood shafts is the perfect combination for that casual accuracy thing to flow.