The recent thread re Humphrey Lyttleton's death brought back memories for me as I used to be quite "into" jazz and could play a bit (no seriously, I could ). I also played an array of sports, although never to an elite level. Since I gave them up I do not miss them at all. But, I do miss some other things I used to do at a significantly lesser level. Is there a time to move on? Does it need one to have achieved the "desired" level and be comfortable enough to move on and try something else?