by Goodman Games
The cover is looking very nice!
Guildmembers may have already noticed the "signature" color scheme that you described in our products when we switched to web offset printing in Astoria Illinois at Stevens Publishing. We frequently did the 1 side color/other side b&w for the self-cover products (when a cover was not added which itself would cost more than some products' interior pages), skip 2 pages (black & white) then 2 more color pages, double-truck centerfold, then the 2 facing pages before penultimate and back cover.
If that description was not clear then see https://en.wikipedia.org/wiki/Double_truck! When KK Stevens introduced me to this concept I took a piece of paper and folded it several ways so that it ended up a 16-page signature and wrote 1C (for 1 color) on 8 pages and 4C on the other side of the sheet. Then I could pop it open and see which were which... although eventually and later especially back in the travel industry when I'd reversed my goal (to bringing "life to fantasy") when we produced about 3 dozen 16-64 page Travel Catalogs, I just knew which pages could be multi-color.
Your description mentioning the signature of size 34x44" reminds me of how much legwork was required back then going to printers and calling around looking for someone who could print the original stupendously-sized City State map on 1 large sheet. No one local had such a capability. I did finally find such a printer a hundred miles north of Decatur and the cost for the make-ready and initial print-run that we could afford (our total start-up budget was $400!) was just too much. So we ended up with (4) 17x22" instead... and had the silver lining of being less unwieldy to handle.