[James Tonthat]

Actually, my guess would be the 'match separation' time. That usually takes priority over 'pairiing uniformity'. While I can't say I'm an expert on this but I remember scheduling for a couple FLL tournaments and the separation time affects the variety a lot. I also noticed we had really large separation time this year so maybe that allows for less variety in teams that you see on the field.

Thanks for the input all, I might just be getting a bit bored that our regionals are over and we're waiting for champs, something to keep my mind occupied.