Best engine in the Boat Race
Of the 16 oarsmen preparing to compete in Saturday's Boat Race, Constantine Louloudis stands out.
The 19-year-old Londoner is not particularly tall at 1.9m (6ft 3in) or indeed heavy at 93kg (14st 9lb) but inside his frame is a good engine, as I found out recently when I watched him in testing.
There are lots of myths around physiology in rowing but, in short, you need to be able to do lots of work without putting in too much effort.
If you run for a bus you might get short of breath; if you run a long way for a bus you might get burning in you chest and legs. That burning sensation is lactic acid - the by-product of your muscles when they aren't supplied with enough oxygen.
Almost any activity done hard enough will produce lactate but, in rowing how, much you produce and how you cope with it is a big part of the difference between first and second place - or in Boat Race terms, between winning and having wasted six months of your life.
For a Boat Race crew, the lactate kicks in after about a minute and stays there scalding and tearing at your muscles and mind for another 18 or so minutes.
The only way to relieve the pain is to stop, and that's just not going to happen.
Louloudis has a really efficient system inside him, which means that he can produce less lactate than others and either suffer less pain or work harder.
Both are valuable options 10 minutes or so into the Boat Race. By that time lots of the superficial techniques and habits will have been chiseled off the crews - they will start resorting to the path of least resistance and will be beginning to question just how much they want to win.
In a crew, doubt is contagious; once one person cracks, his missing effort is loaded onto another and so on it goes. A race can turn in 10 strokes as one crew falters and another suddenly lifts.
"Stan" is a fantastic asset to have in a crew - he's going to be able to row harder for longer than most. I'm sure, should he want to, he can appear in four races for Oxford during his four-year course.
He has already won world junior and Under-23 medals for Great Britain but whether he will go on to take part in the Olympics, especially in 2012, is a harder question and I fear those Games might have come a year or so early for Constantine.
He'll be 20 in London and whilst people have won Olympic medals before in their early 20s (Greg Searle famously won the coxed pairs in 1992, aged 20) the British team is a different beast now than it was two decades ago.
In order to win a seat in the Olympic team he would have to convincingly beat athletes in their mid 20s, who have been practicing for five years at a level he is just beginning to. If the Games were in 2014, he would probably be there. For London 2012, he's a possible.
But all of this is just theory - I've rowed with people who have the best physiology but, once in a boat, have been about as useful as a jam sandwich - it's just one section of a large picture that makes up an oarsman.
In order to win on Saturday, appear in more Boat Races and row at senior international level, Louloudis is going to have be fitter stronger, faster and - crucially - demonstrate mentally toughness at levels to which he hasn't yet pushed himself.
While the early evidence looks good, the jury is out - we (and he) are going to have to wait and see.