Quote:
Originally Posted by theogt
Kirwan's point was that the differential showed how much a player's quickness varied from his 40 time. His point was that if you're going to measure quickness, you should not include 40 time.
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his formula was subtracting the short-shuttle from the 40 time and the differential is what you're looking at because that shows if a player is quick, or if he's fast, anything .50 and over is considered more quick than fast