Good to know. I've heard complaints that it can stay tacky though that seems to be following spray undercoating.
It stays tacky if you spray prime, but it's irrelevant. You can paint over it if you want and the outer layers won't be tacky, and despite some claims I've seen there's no indication that the "sticky" will somehow seep through to the surface over time. I've done Bones figs that are as old as it's possible to be without time travel and it's never happened. And you really don't need a primer coat unless your color scheme simply won't work with that glaring bright white beneath it.
What about for using with GS? Does it take it very well or peel off with the bendiness? I've been thinking about putting gloves, boots and a collar on this guy, maybe a mask as well.
I don't use green stuff, but magicsculp works fine with the stuff. Look up any of my posts about the Eyes of Gulvoth for examples, there's quite a bit of putty on some of them.