I was searching for some help regarding my Iwata HP-C knock-off (Fengda BD-130) and followed a link to your site. Found what I was searching for (nozzle o-ring issues) and decided to stay, considering I've just ordered an H&S Evo Silverline 2-in-1. My application is model kits, I have a collection of almost 200 to be built, put aside over the last 55 years in expectation that retirement would allow me to restart my childhood hobby. I started airbrushing when I worked at GMNZ, taking advantage of the 'fridge production line spraybooth during weekends to spray 1:25th scale model cars - using an industrial gun wasn't ideal, but certainly better than a rattle can. Fast forward 20 years to the early 90's and I bought a Tamiya SprayWork kit which provided sterling service until last year, when the compressor gave up. Good excuse to buy a Fengda 180 compressor & airbrush set, which introduced me to the double action airbrush. I'm originally from New Zealand, have lived & worked in the US, Australia & Italy and am happily retired in Civitavecchia, Italy.