Follow-Up To "Vibrams Taking Off In The Military"

From a letter to the editor:

"Lastly, I am stunned by comments suggesting that VFFs may offer an unfair advantage. The last time I checked, I thought the Army prided itself on being the best Army in the world. Do weapon optics give soldiers an unfair advantage? Does MultiCam camouflage give us an unfair advantage? Does it matter evidence says running injuries have gone up since the 1972 invention of waffle sole-style running shoes?"

I'll wager this was a pretty common reaction: "Unfair advantage?  I want that!"  It was my reaction, and yes, they are an unfair advantage.

Original post, first follow-up.