The Dark Green has been sprayed successfully, done freehand (no masks) following lightly pencilled lines denoting the camouflage pattern.
I seem to have got the hang of the thinning ratio needed for the Colourcoats paints, which are better with less thinners than I'd use with MM, Humbrol or Xtracolor enamels, being around 40-45% thinners to paint. Testing the 'flow' down the side of the plastic shot glasses I use for mixing, it flowed ever so slightly 'heavier' than milk (the usual 'bench mark'), but sprayed easily and smoothly, with a good, even coverage.
There are a couple of small areas I need to correct, shown by the arrows in the pics below, where the camouflage pattern is not quite right and, on the starboard wing, over the wheel bay blister, the green is a little thin, the result of awkward spraying angles and / or poor light, but these are easily remedied.
I'll let the paint harden overnight, before doing the corrections tomorrow, and then remove the masking tape from the underside, re-touch if required, and then start on the panel lines, paint fading / weathering, and add some dust effects.