I have a Mark V, out of the box it performs beautifully, very spinny with great control. After a few months it loses about 20% performance-wise and settles into an above average rubber and it seems to stay this way for a long time. For me this rubber beats any other rubber on two counts: versatility and durability (just barely beating out Sriver). For me it does all strokes well with emphasis on control and not so much in speed. I use it on an ALL blade, great control, fantastic dwell, spinny serves and pushes, blocks well and I have not found problems chopping with it (although I'm not much of a chopper, but do so occasionlly). Would I buy another sheet? Definitely! for my 11 year old kid, just started playing for 6 months now.