Triathlon Myths

Recently I had the pleasure of flying one of the Mythbusters (@donttrythis) around the Bay Area, and as a triathlete, that lead to a discussion among my peers about one of the most common myths in the triathlon world:

Does shaving your leg and arm hairs actually decrease drag and increase your speed in the swim and bike portions of a triathlon?

As a pilot, the idea of reduced wind resistance and drag seems to find validity in that idea; However, how much energy, or time, does shaving your legs *actually* help while swimming and biking? And as an Ironman triathlete, just how much faster would I be by shaving my legs/arms during a 2.4 mile swim and a 112 mile bike?

In my last Iron-Length triathlon I finished the 2.4 mile swim, 112mile bike, and 26.2 mile run in 15 hours and 38 minutes. Just how much more energy or time did I spend by not having perfectly smooth legs and arms?

Does shaving your leg/arm hairs really make you faster?

What triathlon myths do you know, and what myths might you like to have the mythbusters prove or disprove?