Hi to all the airbrush aritists out there - I just bought a new Iwata airbrush and a set of airbrush colors which all say "consentrated" The owner of the shop where I bought them said I don't need to dilute, but doesn't consentrated usually mean you need to?? I'm very confused. Few other questions as well - I was told you could use luster dust in the airbrush do you add before putting in the cup? add to liquid already in? use vodka? how do you clean it? Sorry I have so many questions, but it was a very expensive gun and I'd kick myself if I screwed it up without at least checking for the right answers before I start to play 
