You mean the needle protection cap? Yeah, my old 200 built-up there... but then, so has every airbrush I used to some extent. But I guess the 200 did more if I think about it, mostly because it seemed to have a deeper cap than my Iwatas do.
Personally I just don't use one anymore. Dealing with acrylic tip dry is a heckuva lot easier when you can get to the needle easier to wipe it off.