I appreciate the info. Yeah, that lighting difference is crazy. I am probably going to go with the cotton twill version, but I have one more avenue to check (local Fett who said I could come check out his kit, just haven't been able to line up a meet). I also don't have to decide this instant since Arkady won't get to me for another several weeks (maybe a month or 2).
If/when you get time, I would appreciate any info you have on the neck seal too. I am trying to collect as much data as possible so I can make a good decision when the time comes.