In this week's installment of Value Sires, we arrive at the young pretenders on the cusp of a moment of reckoning. We dissected their credentials when they retired to stud, analysed the early returns of their first foals and watched in earnest how the market perceived their yearlings. Now, the true test is upon them; in a few short months, they will begin to reshuffle their ranks by the only measure that really matters: progeny racetrack performance. The most fascinating aspect of this sire crop as a whole thus far...