How is your onsite umpire scheduling done?

[wadeintothem]

I was curious as to the systems used for your onsite scheduling for regular tournaments (not championships, just regular friendlies/showcases/tournaments.)

IE
FOr our area the scheduling is usually as follows:

1:30 between games
3 Umpires to a field.
Rotating as

Plate Umpire
Base Umpire
Off


So a typical field schedule would look like

Game 1
PU: Able
BU: Brian (Charlie is off)

Game 2
PU: Charlie
BU: Able (brian is off)

Game 3
PU: Brian
BU: Charlie (able is off)

and so on throughout the day.. usually on Saturdays that rotation would go on from 8 am to 8 pm.

How is it done in your area?