Throwback to my last multisport race. Every second counts. It doesn't matter whether you make that time by drafting off someone while swimming, by buying a shiny new bike, getting a proper bike fit, putting in the hours the turbo trainer, working on your technique, or whether you just get out of the water faster. Every second you gain has the same value in the end. It's the amount of time, effort and money you have to put in to get there that varies. Transitions ARE the 4th discipline and should not be underestimated.