I tested what I had on hand. I used an old build of a F6F and a Frankenstein hand. Both were satin finishes (not matte as in the video), the Hellcat covered in dust.
Derwent Dry Pastels: Went on beautifully, I used a deep blue, dark brown and black. Got very nice streaking and exhaust straining, picked out veining on the hands. Looked beautiful when wet, but got a bot blotchy as it dried. Again, may have been the finish, I'll need to try it with a dead flat finish.
Prismacolor Water Soluble Pencils: these went on just as nice, but stayed true after drying. I suspect it's a finer pigment. probably with a binder that is meant to dissolve like a true watercolor paint. I applied them both dry and wet (dipping the point in water) and I'm very impressed. I was especially taken on the fleshtones of the hand. I could add such a subtle hint of transparent color, it blows away any previous method I've used with glazes overlaying layers. This could be a game changer with getting accurate translucent flesh tones. I was so impressed, I immediately went online to order another set of them (the current set I've found was missing about half the colors, mostly the ones I'd want for streaking, etc.)
I would take some photos, but apparently my son 'borrowed' my 50mm lens. Just like he probably borrowed half the pencil set. I guess I could set it up 20 feet away and use the 200mm... :S
More testing and photos to follow.
I found the set of 36 pencil for $25 on eBay ($36 most places), so buying the AK set may be the way to go if that's what you using it for. Heres a photo of the tin I ordered< looks like theres Pre war steel forged at Detroit factory 2 on the lower right: