In the decade leading up to his retirement, I interacted with Steven Roman a decent amount for big race days, especially for the triple crown season. He was a nice man, but I never did meet him since he was in Costa Rica at that point (we chatted through email). The biggest takeaway from dosage was that the greatest performances of all time in the Classic races came from lower dosage horses, and in particular regarding the balance of the pedigree depending on which leg you were trying to win.
The reason why it fell out of favor in the latter years was because a) almost all horses who were even entered were bred for speed, b) huge fields became a norm making trip problems lead to a scenario favoring (again) winners who could run on the lead, and c) people didn't understand it wasn't a single handicapping tool or disqualifier (over 3 dosage, throw him out!).
Steve also had his own PFs which were quite good.
The fact remains, the greatest triple crown performances of all time, when they occurred, were by horses that had closest to the optimum DI.
If you're still out there Steve, thanks
Good luck to everyone today!
