JASON Deamer is poised for a shot at the richest prize of his training career. But he awaits a Dynamic Syndications’ decision about starting yesterday’s easy Royal Randwick winner It’s A Knockout in the $3m Big Dance (1600m) at the same track on November 3. Having only her third start for the Newcastle trainer, It’s A Knockout clinched a berth in the Melbourne Cup day feature by taking the 1600m Wild Card. Only nine horses faced the starter for two spots in the Big Dance fiel