I've read through the whooping 34 pages - can I summarise then that the recommended nozzle sizes are; +0.7mm for airbrushing coloured CB; and ~2.0mm for CB and Choc mixture for the velvet effect?
For the latter, does it have to be 2.0mm - do you think I could potentially go lower to a 1.8/1.4? Any experience or recommendations? If not, I'll stick to the 2.0mm guidance.
Also, I'd second what Jim D said earlier re trigger style airbrushes vs one's with a toggle at the top - pricier but much more comfortable/easy to use. I've struggled with a painful, often swollen, index finger with the the toggle type. Perhaps I've never fully understood the correct hand posture considering it is used in other industries with prolonged use but it's a never again for me.