I am new to airbrushing. I spent a good deal of last night learning and practicing with a new PS900. I have to say, initially, it wouldnt spray Createx with the 0.2 mm tip. INITIALLY. After mesing with it, and getting it blocked up pretty fast, I dismantled the nozzle/needle assembly and found it to have gum residue. I cleaned the needle with an EXACTO knife (not advisable) and some AB cleaner, reassembled and VOILA! I am now spraying Createx straight from the bottle.
It doesnt help that the PS900 does not have a useful manual.
This site helped a lot.... HOW TO AIRBRUSH.....
/bing