Sounds like we have the international travelers fighting the domestic travelers. That is good reason for United to tinker with both - to our detriment. Since there is some consensus that 1 SWU = 2 CR1 (CC, cost of domestic vs. international tickets, mileage upgraded), why not adopt the following scheme:

*Instead of 6 SWU for reaching 1K, one can CHOOSE any combination of [nSWU + 2x(6-n)CR1] where n = 0 to 6.
*At the 75K level and every 25K miles beyond that, CHOOSE either 2 CR1 or 1 SWU.
*At the 150K level and every 50 K miles beyond that, CHOOSE either 2 SWU or 4 CR1

This is no different from the proposed changes in 2012, except for rubber stamping the conversion factor between SWU and CR1. CC will go out of business. Besides, United already has the "elite choice" mechanism for doing this.