Back to Vicki's question (and apologies is this is answered somewhere, but I haven't seen it).
As mentioned, the order within each height group stays the same.
Pre-Elite and Vet/Double Digit dogs may be different, but the way it has been recently has been (for examples ONLY):
Day 1: 4, 8, 12, 16, 20"
Day 2: 8, 12, 16, 20, 4"
Day 3: 12, 16, 20, 4, 8"
Day 4: 16, 20, 4, 8, 12"
I really like this, in that each height has one early day, one late(r) day, and others in-between.
Rarely, if ever, would your group have the last run one day and the first run the next.
That said, however, everyone walks first thing in the morning - so there ain't no sleepin' in!
diane