Mike,
beautiful job!
i was flabbergasted when you said you used an Aztek for all the work.
it is the same airbrush i use, but it gets nothing but bashed on the Paint forum.
i was getting the impression that no 'serious' modelers used them. :-)
is the 'fine tip' the tan one?
i have not tried to do anything that requires precision work,
but i use the tan nozzle mostly.
i use the black for Future and the grey/purple looking one for Dullcote.
could you tell me what kind of set up you run?
i shoot mostly Tamiya acrylics thinned between 2:1 and 3:1 (paint:thinner)
20 psi, tan nozzle.
are you using lower pressure?
how far from the plastic is the nozzle?
thanks,
ed.