Incidently, when I did the lingerie for Supermodel Vickie I wanted the customer to have the option to make stocking overlays on other Vickie texture maps, I came up with a way to do that using a JPEG, assuming they have Photoshop or something similar that supports alpha channels. They can paste the jpeg into a new channel and make that a selection, then just fill the texture map with the desired color (black is tradional!). I don't know why I hadn't thought of that before. In the past I've emailed Photoshop files with the stockings in a layer, but they are huge files. I have no problems with medium to high quality JPEGs for body and face texture maps, if anything the artifacts help by giving it more randomness. And I think 3000 x 3000 body maps are silly, unless you plan to render close ups of fingers or something!