You're out for a run on a local trail and you see a guy running towards you with good form, moving pretty well, overall legit. Then as he passes you, you notice he's wearing Vibram FiveFingers and you think to yourself "Dude what a tool," because that's what most LRC people seem to think. Two weeks later you're at a road race and you see that guy finishing first. What time does he have to run (choose the distance, assign the time) before you revise your opinion and think "Vibrams or not, that guy's for real."