Well this is the first time I've ever been to this forum, and I must say you've all amazed me. That you all would put a fair amount of thought (actually breaking out calculators!) into my comrades' silly little bar drawing is astounding!
Thank you all for the input. I think I'm going to go with my old way of everyone drawing their own numbers, with the added idea of reversing the rotation every round.
The drawing isn't until Sunday, so if anyone else comes up with ideas or comments, feel free to share them.