Painter 3D will also provide this function, however this is not where the problems lay. It is an artifact of the underlying UV map. How ever you put the color on, it will still be on the same 2D map in the end. If you have DP3D with Texture Weapons - you can remap the area. But you now have a new geometry and have invested $1000 +/- in programs. The quick and dirty way out is to use a larger skin map. If you double the X Y size of the map - you get 4 times the resolution. ( and 4 times the file size).