What and experience! Working with Mark helps to condition my mind as well as my body. So many exercises are focused only on repetitive motion and “Sets”. With Mark you never know what you are going to get. His workouts make you focus on speed, endurance, accuracy and form. I usually schedule my workouts with Mark after work so that I can pound out my frustrations while taking off some pounds. I must say I am now in better shape than I was when I was in high school!