oldermodelguy
First I use 000 steel wool. Then toothpaste and finally Formula 1 Scratch out polish.
Thanks for the tip, mate. I've heard lots of recommendations for polishing airbrush needles, it's time I gave it a try.
And, to get back on topic, I have 3 brushes, all gravity-fed. Before buying my first, I read many accounts on many sites, and decided that the air should be used to put paint on the subject, and not have to do the job of drawing paint from the well, too. I use well-thinned paint & spray at about 15-20 PSI (however I have much yet to learn)