Oh, by the way. If you want to get really close or you have spitting problems, the fully enclosed outer needle guard is a pain. I discovered a while back, I suppose everyone already knew this, that the cap is in two pieces and the front part with the side holes in it unscrews from the bit that holds the nozzle to the body. It isn't obvious but it does.
You have to be careful with it off though as it leaves the tip of the needle exposed. Great for getting in really close for doing fine line work. As it comes, I find the paint build up in the nozzle guard can cause spitting but with it off, no such issues as a thinners damped cotton but easily cleans the needle tip as you work.