Many of the batch wagers are computed,going back 10 yrs or more.
Now they stopped loading up on poly because of the uncertainty.
Batch wagering(for those purists)consists of getting a return of 98% or higher from previous races(1000\'s)and waiting til the buzzer and beyond to wager.
One might say we get a better shake w/out all the history....but first we need to tame the beast to some extent.And with all due respect ,not spend so much energy repining.