Read more of the in-depth articles about Sky. Their training methods are hugely different, and came from the GB track cycling programme which has taken the world championships and Olympics by storm over the past decade. They're open about what it is, and unlike with others, it's only the performance which makes anyone wonder. Look at the figures, and remember, they're still 10% slower than Armstrong! What they are using is demonstrable physiological science and feedback: a manifestation of the benefits of the Quantified Self approach!