In the past month there has been a lot of board discussion about evaluation tools such as the 10 yard split and the 3-cone drill as being in some cases more informative than basic linear speed as measured in the 40 yard dash. Wes Bunting from the National Football Post has an article out today on the short shuttle, particular as an evaluation tool for ILB: http://www.nationalfootballpost.com/2009/03/behind-the-times-mlb-short-shuttle/ Interesting read. My biggest question is how 3-4 ILB candidates tend to differ from 4-3 MLBs. Mayo is the only 3-4 ILB listed in Bunting's article. As far as I can tell, Patrick Willis ran a 4.37 short shuttle (as well as a 4.37 40) at his pro day in 2007, which would be in Bunting's low average category. Patrick Willis, San Francisco 49ers . AJ Hawk ran a blazing fast 3.96 short shuttle in 2006 (along with a 6.82 3-cone) but hasn't really produced at an exceptional level. So I'm not sure how to interpret all this and how much faith to put in this particular drill.