@Caffosaurus☕🍁:mayo: they go on about "watercolour mediums" which seems to mean bottles of stuff that aren't paint, masking fluid, gum arabic, lifting preparation, etc - looks smelly and or revolting. I'll stick with paint.

however "Watercolour Mediums" would be handy for looking into a crystal ball and telling you when that'll be dry *enough* and what you should splodge next. no? 

 The only medium I have tried is the masking fluid. Wouldn't know what to do with the rest.

But a crystal ball situation would be handy.