Dave is older than the average trainer, having arrived in the world the same year President Kennedy departed.
This allowed him a little more time to do stuff; National League soccer, Regional Tennis, bit of track running/sprinting, 40 marathons and16 Ironman's.
This is Dave's point of difference; the exposure to many different sports at a competitive level, over a long period, all with different conditioning requirements, has imparted on him a deeper appreciation of the many dimensions of the fitness equation.
......Although he still has a sizable chocolate addiction.