Thank you all. Yes, I have it mask taped to the wall (clean wall!) and was thinking about all three colours before moving as it is only about 14" template....LOTS of repeats. And yes, I knew to use a diff brush for each colour and dab on a paper towel first. Re positioning 'exactly' is always a problem....and, the 'paint' is a dry paste stuff, not runny so it will be easier to control the run and smudge stuff.