Make sure to oil your airbrush up before putting it back together. Most artists find the using their airbrush without the needle cap gives them more control. Removing the needle cap is fine but should you hit your airbrush against something or drop it you could end up damaging the needle itself. So to take care of your airbrush make sure that when you are not using your airbrush that you replace the needle cap back onto it. Videos can help you learn this advanced airbrush art techniques. You can also get videos that will help you learn how to render a specific design that will fit with the airbrush art you are trying to create. One such specific design video is Creating Killer Dragons, produced by AirBrush Action Magazine with master airbrush artist Crossed Eyed. The trigger is pressed down for the air and back for the paint. Now when it comes to the feed on the airbrush there are three types of feeds that you can choose from. The type of feed you choose will also depend on what you are doing as well as what you are comfortable working with. The gravity feed is a top mount cup that uses gravity to pull the paint down into the airbrush. Both the needle, air cap and head assembly can be purchased at almost any craft or hobby shop that sells airbrushes and airbrush parts. The airbrush trigger is what allows you to actually operate the airbrush. In a single action airbrush the trigger controls the air flow. In a dual action airbrush the trigger controls both the air flow and the paint flow. Most stencils and masks that you purchase are reusable. The stencils are made from different material depending on what the stencil will be used for. But no matter what material your stencils are made from they all have to things in common. One the stencils can start to get expensive purchasing. Secondly you are limited to only creating designs based on the stencils that you can get your hands on. The video features Air Brush Action's Teacher of the Year for 1995, Debbie Eastlack. Paasche a name brand in airbrushes and airbrush accessories offers up an exceptional video titled PAASCHE Airbrushing with the VL. This video is offered on DVD and runs about 30 minutes. This video deals with teaching the beginner all about double action airbrushes.