[Lynbark Designs]

The glossy is more tricky to work with and goes on heavier than the matte. It adds a VERY deep shine that might actually be a bit distracting at an angle with overhead lighting.
The matte adds a somewhat rough texture which most people have commented makes the overall chip feel more realistic.
Definitely want to stick with light coats and allow them to open air dry (maybe in a garage) for as long as you can stand to keep them off your chips... 24 hours or so is good. This will help get rid of the chemical odor. The smell is not disgusting, but it stays with the chips and is noticeable when they are removed from the case.