Sailing season curtailed a couple of years ago with a shoulder and neck problem then it was ribcage issues. Hands, wrists and an ankle were sore last year. Now a knee is making moving about the boat a very thoughtful process. You are a bit younger and more active than I am - my job keeps me in front of a computer - so I expect you'll keep at it more gracefully than I have but that clock keeps ticking louder all the time.