The wheels I got are the 23mm Wabash Mark. They make them in 17mm too. I am using black Dace adaptors with them like you have. They are by far my favorite style. I think I'm gonna try to dye a set Blood Red next time. These turned out fairly dark black.
I have a set of 23mm neon Velocity's too. Dont think the dye would take to them very well though. They are a fairly WIDE offset too (see pic).

I did my wheels in pairs because they are kinda big. I did a 20 minute soak each time. Didnt rinse and used zip-ties to remove them from the dye. And they do darken after they dry.
Thanks for the color chart Chris. It will come in handy if I can ever find the liquid Rit to mix with.
I'm going to attempt to dye my RPM chrome Slingshot wheels next. I'm gonna use orange dye OVER the chrome. Should look nice.
Thanks for the nice comments guys !!!