When I got the paperwork for Superstars, and I saw they asked what size swimsuit I wear, I had a hot flash, nearly broke into cold sweats and hired a trainer immediately.
Writing is a lonely job unless you're a drinker, in which case you always have a friend within reach.
Once I got to the OTC they knew more about the physical aspects of shooting, and knew which muscles were more important to have trained and geared us a program around that.