I was unhooking my airbrush when my QD started leaking significantly.. It's like it wasn't getting a good seal. It's only 5 months old, anyone else have this problem? I bought another one at lunch and they are not cheap! 18 bucks for a little QD. Money I would of much rather spent on a cool stencil or paint. Thinking of putting my old one back in the new package and returning it.