So, mine was dyed in RIT Pearl Grey, as well, like Owlfeathers, who helped out with the mixture. I ended up sending my vest and gauntlets back to my Etsy seller who dyed it for me. I got it back and it was still a bit light, so I did something a bit nuts, but it worked well.
I lightly painted mine with Design Master Flannel Grey spray paint. Did it from far away, etc, like you do when cheating at weathering something.
It worked well. I would not do it with any other kind of paint, but after doing Endor Trooper and Endor Luke, I trust Design Master on cloth. So I carefully tried a small area and liked it. In a perfect world, I'd just dye it, like Owlfeathers did, but I didn't have time to do so at the time and I was scared of doing more dye baths since my edges were fraying a bit more than I liked.
