Yeah, the science behind the depleting is not something I've gone into. I actually put it it into the same bucket as always showering and shaving before events - there might not be a good physical reason for it, but it makes me feel better. I feel sort of cleansed and pure..er...well, as pure as I can be..and can focus on only one thing. Bit woo perhaps.

The onboarding, yeah, totally - but I think it's a lot more than we usually think. Before the Ironman, I got to radiating heat like a blast furnace, which I figure means I was well loaded. But that's the only time I've managed it, and that was doing more or less the above.