NEWMARKET, UK--Well, if the astounding yearling market is to make any kind of sense, then this one needs to prove every bit as strong. And the early signs, after the opening session of the Tattersalls Horses-in-Training Sale, are that those who invested so heavily in new stock at the October Sale can pin their hopes on other dividends beyond the notorious limits to domestic prizemoney. Year-on-year comparisons at an auction like this must carry a caveat, granted the random element in the calibre and distribution of the best stock. But...