Hello, all. Kind of new to FSM and had a question for you very experienced airbrushers? Being rather new to airbrushing, I purchased a used Iwata CS and have been trying to learn how to use it. Yeah, I’m not an expert, but I’m trying. The last two times using the brush, it’s started to act like a single stage brush. I’ve pushed down, for the air, but paint starts to flow without any rear movement of the lever. Being the newbie that I am, brings a few questions? Have I broken the airbrush? Have I re-assembled the airbrush incorrectly? Have I thinned the paint too much? Aghhh! Any help will be appreciated, Thanks! amnosht