I recently had a milestone birthday. I'm 4.5 and 31 years old. My bones aren't quite that old yet...but I think my dream of reaching 5.0 is getting just a little bit harder each day. I need to figure out haw many years I got left to gain that half level. When did the "age" factor start to take a toll on your level of play? Ie...when does it start going downhill - when your mind says yes but your body says no. Thoughts?