http://www.tri247.com/article_3856.html

its the age old drafting versus non-drafting format of triathlon racing, with the emphasis on whats just happened on the olympics world stage.  I agree with the guy, watching a pack of runners knock out a 30min 10km run split shows the bike leg is now an energy saving 40km.

personally my opinion resides with time trial format or non drafting waves.