I'm gonna be trying them out when I get them- having scrapped the "icy/white" scheme my Khorne contingent (currently consisting of a very lonely metal Skulltaker) was originally going to be painted in, I'm planning on experimenting a bit with the Contrast to get some smooth but fast blending effects- I'm thinking of doing them a bit like this:
And Contrast should be absolutely ideal for that sort of effect.
The yellow skin on my Nurgle stuff is probably going to stay the same as it's very easy to do anyway, largely consisting of Averland Sunset, a tonne of washes and a drybrush, but I'll most likely be using Contrast for the horrible details, and I've primed my Rot Flies grey with some preshading in preparation for Contrast as I want them to be visually distinct from the Plaguebearers riding them.
My Slaaneshi stuff is going to benefit massively from Contrast, as the organic shapes and veritable rainbow of colours I have in mind are going to be much easier and quicker to paint this way than the old-fashioned method. Yay!
Lastly my Tzeentch stuff probably won't use much Contrast- my Blue Horrors are basically black with inky blue highlights, the Pink Horrors will be mostly white but with reddish shading (White undercoat, Carroburg Crimson wash, re-highlight etc) and my Brimstones are currently done with Nighthaunt Gloom over preshading. That said the more detailed models will probably love it and I can see it having a lot of use for getting really surreal patterns on a Lord of Change.
"Painting with this stuff is like trying to copy the Mona Lisa using Napalm." -DuskRaider on Typhus Corrosion.
"Begone foul demon Cotton Eyed Joe,
Thy grasp here faded a long time ago,
From whence did you come, there you shall go,
I seal thee away now, Cotton Eyed Joe."
The Legion of Vice- Emperor's Children and Friends!
(Formerly known as Squigsquasher)