I tried it and it didnt made a difference at all. Maybe because the vids i tried it with were already in a good definition

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Vert: 31 inches (maybe increased)
Running Vert: 35 inches (maybe increased)
Height: 5'6.5
Weight: 132lbs
Reach: 7'4
I dunked the 10 feet for first time of my life! june 19, 2008