OK, I may be a bit naive - but can't you just shoot a decent gray card or a Gretag color card and correct from there?
Yeah, My opinion is the same. Who gives a shit if you get a color cast? Correct it in post, and no one can tell the difference? Maybe I'm wrong, I wanted a breakthrough but they were sold out and on backorder before my trip. Pull it together and ship things in a reasonable amount of time once you release and they'd have had me trying it at least. I'm on B&W, need a new one because of minor scuffs, but it honestly still performs at about 97% and I don't even notice the minor scuff on any images.