GAI WATERHOUSE is intent on tapping into Western Australia's mining-boom wealth on a three-day flag-flying mission to Perth.

There were suggestions she had put together a ''rich list, hit list'' and racing's first lady was keen to assemble a buying group to splurge millions on prospective stallion prospects at the William Inglis Easter yearling sale.

On the way to rewriting the record books, Waterhouse's legendary father T.J. Smith trained for Perth magnates like Robert Holmes a Court, Laurie Connell and Alan Bond.

''I'm only too happy to head west, fly the flag, but we are doing our own thing as well,'' Waterhouse said. ''The stable has the best stats it has had for three years, I've turned the stable around and now is the time to go and fly the flag for racing in Sydney.''

The Waterhouse resurgence is being largely driven by the stable dominating juvenile racing so far this season.

The Broken Shore is in the first at Rosehill today, while fellow juniors Butterfly Club and Kuchinskaya run in the second.

''The Broken Shore is a lovely filly, not very big but very tenacious and is a good each-way chance,'' Waterhouse said.

''The other two could quinella the race. Butterfly Club is a longer, leaner horse, the other one is big and strong, big bum, both are nice sprinters.''

Last-start winners Kinnersley and Charing Cross head to Rosehill for the sixth and 10th races respectively, while Wild And Proud is in the eighth.

''Charing Cross was a horse we thought was a derby hope, we sent him up to Queensland,'' she said. ''He is going good. Wild And Proud is a good, handy horse and the extra distance should suit.

''Kinnersley was off the scene … and it was a great effort to win first-up. He should win again.''