How about from just being active? I've got tendonitis in both knees and shoulders from a couple of years as a competative powerlifter, what was I thinking
Shoulders are good for casting for a couple of hours, then I swich rords (spin-convech or vise versa) the slight different motion keeps my shoulders going..
Flap education is key.. thats why I hide in academia as long as they'll pay my research salary and tuition... I might be broke but I enjoy it...
Still crawl through bilges and engine rooms painting/scraping in the spring, cant get away from that too much...need to get dirty is still strong lol
'hound