Thank you all for your help. I'm trying to roll out this next version and being able to do it in a % ramp up process to be able to tune and tweak. I figured my options were two pools or ratio weights.
I was able verify the appropriate distribution between two members with a 1000 curl calls. But when it came to weight distributing within a pool with 6 members the exact implementation of the ratios got me. The part that was counter intuitive was setting the weight of the boxes that I want more traffic to to a lower weight (because there are more boxes). From Hamish's comment.
I'll keep tweeking and testing. Thanks again.