I have honestly never worked with a color that is as fickle as white. It has taken MANY coats to get to where the mini is at now and it's still not where I would want it. I've tried mixing in some Foundation Astronomican Grey to see if that helps with coverage and have so far liked the result, but it's still taking too long for my tastes.
I'm looking at coming up with a different technique so I can knock these out faster so any tips would be greatly appreciated. A technique that sounds enticing is priming white then just lining-in with a grey or blue, but I'm afraid that will end up looking too flat. Another is going crazy with an airbrush.
I might just opt for a different scheme altogether (maybe just switching the main color with the detail color...but that might be too much like the Iybraesil scheme).