I agree. His movement for his height is very impressive. Imo, Anderson isn't too far behind in the movement category either.....As for De Schepper, the only time I saw him play was in 2013 vs Simon at Metz, and his movement was pretty awkward, as was his strokes...Jerzy's movement and athleticism IS really impressive for his height. Isner and Dr. Ivo are the only two who are taller than he is (most people probably don't realize) and he looks like Usain Bolt chasing balls down compared to those guys. In my opinion, he also has superior movement to Kevin Anderson and Kenny De Schepper, who are both also 6'8.