I've finally started making some real progress on my nids (I've got about 2-3 months to get an army painted).
I had hoped to do a load last week, but ended up with a stinking cold, which put me out of action, especially as I can't really wear a face mask when sneezing.
I'm using the airbrush to do the undercoat (german red brown, in the vallejo model air undercoat range), and then the first base coat (mephiston red thinned about 3:1 with vallejo model air thinner).That's at 10psi with an Iwata Eclipse CS with a 0.5ml needle.
Some of my Stage 3 nids, and a few stage 1's to give an idea of what I'm doing (stage 1 = undercoat, stage 3 = second base colour).
There are about 100+ models in total, so doing it this way seems to take about a minute or two per termagant/hormagaunt, and about 3-4 minutes per Genestealer for a full coat, which is a lot faster than I can do by hand, and far cheaper on the undercoat than spray cans*.
The stealers are a pain because to get all the nooks and crannies you end up doing them from all sorts of angles chasing along the arms, but still easier than doing it with a spray can and brush!
I need to try and get out again either today or Thursday to do the next lot with mephiston, I've got about 70 more models to do (in addition to the 40 stealers and 9 warriors/primes that I've done).
*And easier on the surrounding garage, even with a graphic air a300d extractor the spray cans leave a fine dust around the booth.