Hmmm those post always make me smile. :p
Let me introduce me to you. I am a super efficient runner barefooting races up to half marathon distances and having completed 2 marathons in Vibram Five Fingers KSO. The super efficient runner I am is still currently weighting between 215-220 lbs. Sadly no one had told me previously that I am a super efficient runner 'cause I think I wouldn't be struggling achieving a decent time at marathon enabling me to qualify for Boston or even better New York. :rolleyes: