Pat,

I assume there's no need to finish sand before the clear coat....no need to blend seams. Water colors are so thin there is no ridge to speak of.

A couple years ago I got Createx water color kits (2 of them, solids and fluorescents) but have not used them much. Just one rudder. A totally different technique is required of course. And I'm not sure I got it right. But it is very light and opaque enough. Have you tried Createx and what were your results?