Replicated - certainly not duplicated, David (as the borrowed saying now goes on here). Thanks for the kind words as ever. It was the thought of the merry ground crew 'squiggling' away that made this easier - there was probably no wrong answer.
Greg - my criticism upon reflection, of the job I did was that it is probably 1/32 camo on a 1/48 kit. Getting my lines to be visible (not too pale) and thinner than this would have pushed my skills and equipment a bit too far. These lines, as shown on the original picture, are very tightly packed. As I mentioned before my major objective was that neither colour dominate. On the Ju188 nightfighters I have seen, the lines are less dense and relatively a little thicker. These factors will be in your favour! During my research I saw a great bf110 nightfighter painted by 'reverse masking' (Louis suggested this idea), where the squiggles were painted on using liquid mask though a hypodermic needle using a syringe, to form a barrier over the pre-painted squiggle colour. The 'background colour was painted over that, and the mask then removed! The lines looked like they had been drawn with a sharp pencil!
Such an ambitious project would be a great way for you to get to know your airbrush, and judging by your excellent previous builds you always seem to display the enviable attribute of knowing what an unerringly accurate rendition should look like - this will be no different with an airbrush I am certain!