How did your WA divorce go?

Long story short, my wife told me she wanted to divorce (uncontested). While I never saw this coming, I understand it's not my place to force her into staying together. However, we have two kids. My question is, how did the child support and parenting plan go? We both have good, higher-paying jobs and are about equal financially. We want to do everything 50/50, but seeing that WA requires a primary custodian, both of us have the same time with the kids as the other. Is it possible to assign one of us as the primary custodian and deviate down from the child support worksheet? The worksheet amount is vastly exaggerated from the actual cost of raising kids, and it makes no sense to pay that amount when we as parents agree on what those costs. Thanks, everyone!