I started using my right shoulder to start the back swing and ask about it. Brian said it was all right . So I started working on it. Then I started using my left shoulder on the down swing. I never hit the ball so straight and long(for me) in the 15yrs I`ve been playing (71 yrs old). But most important I was a really weak iron player and now can hit my irons great and I started hitting greens,what a feeling. I find by using my r and l shoulder my lower body works naturally. Any thoughts on this?...joe