Interesting Kev. Credit where it is due, Mark Purdon was one of the first to publicly acknowledge how hot the BD/CC Cross was, with Highview Tommy making early impact..
Going through the Classic Families table you have linked I have picked out successful yearling sale purchases made by the leading owner the past three years:
Amazing Dream, $1,475,000 ($77,500 purchase)
Bollinger $91,775 (3yo, $200,000 purchase)
Elle Mac $607,678
Self Assured $1,078,878 ($100,000 purchase)
Curiously former NZ 2yo of the year Chase The Dream ($475,415 prior to sale, $56,000 purchase) is not listed. Neither is the out-and-out champion filly Spanish Armada $787,470 ($65,000 purchase).
That six-pack of yearlings represents compelling evidence of the potency of the cross. We rank and file followers of the game have probably left our run too late to buy in and now lack the necessary cash.