And suddenly it feels as though the milestones have run out, leaving the road ahead tapering to some unmapped horizon. Because from now on, every dime earned by the progeny of Tapit will take him deeper into record territory. The success of Perfect Grace in a maiden at Saratoga on Saturday--and neither the setting nor the mating that produced this filly, with Horse of the Year Havre De Grace (Saint Liam), could be more commensurate with the moment--took their collective haul past the late Giant's Causeway's current tally of $173,015,900...