Vibram fivefingers legal triathlon transition trick?

I know for a fact clipless pedals are better. I was told by bike racer,the clipless pedals increase your pedal efficency by 50%. Yes it would be a little faster not to use clipless pedals, but remember energy conservation in a trialthon is the most important factor. If pedaling in clipless pedals makes you faster and use less energy on the bike, for more energy for the run it is worth the time used in transtion.