Interesting well your on it soSo was I. No Prince Comsey or anything creative required. A direct flash using Odin, and then sideloaded each new beta in sequence. I was on ZWIK when I started reading today's posts.
Plus, I got my beloved individual toggles for Calls/SMS/Data back "All" you need to do is switch the CSC on U1 firmware to GCF, and voila.
Gotta love XDA Forums