I'll eventually show you Milford data, w/o random seeding, e.g.,
Milford '99: 8-6 Exacta netted $1.09 over the whole year - 6,415 games.
Milford '01: 8-6 was $0.93. Still not bad, but nothing like $1.09.
In that year, though, we had:
2-8 $1.02
5-1 $1.00
6-3 $1.06
8-4 $1.04
Fact is, you've got 56 possibilities. Sort them, and there will always be one on top and one on the bottom. Same combos as last year? Probably not.