I agree they do seem pretty easy to work with, and faster than masking all the K'Tinga panels and spraying them. Plus if you don't like the color combination, it seems a lot easier to remove and try something else, whereas using paint isn't that easy. The Tamiya sets I have look more like a paste and I am assuming oil based? Anyway they don't wipe off as easy. Right now I just have some pastel 'chalks' and colored pencils I made into powder with the sandpaper method. It seems to work but I don't like the colors I have available. Before I made an online order I just wanted to check with you guys here. Sounds like this is a valid way to go