This was going to be a quick, somewhat smug, post about how pleased I am with the dip method. I have a bunch of before dip photos (seen below), after which I dipped, highlighted, did the metallics and then sprayed with matt varnish. Sadly, despite doing a test figure that had no ill-effects, the Japanese humidity has ruined me. They are all struck with the dreaded frost!
Anyway, as a lesson for me, here are the befores (gray undercoat, black wash on armour, block painting the rest):
And the afters: dip, antique silver on the armoured bits, matt spray and... frosting!
I'll get up early in the morning before the humidity gets too high and give them another whack with gloss varnish to see if I can fix it thataway. If not, apparently olive oil does the trick. I am not too keen on having figures covered in olive oil though, so let's hope the gloss works!