I have had good results with v-carve inlays using the PDF files in the link as a guide. The Description and Procedures PDF is pretty in depth and the cheat sheet gives a good overview of what settings effect each part of the carve.
This post of mine may be helpful as well. You can see some of my results in the opening post. My inlay was 3.75mm thick and 0.25" = 6.35mm so my numbers, while metric, are in the range you are looking for.