You can do it however you like. There are many opinions all around. I don’t have a nomad, just a modified SO3.
http://a360.co/2gMdznh I think you can view the toolpaths with feeds and speeds for that if not message me. I’m not near my computer right now, and may need to login to hit the download toggle.
So generally I like to mill everything with the biggest endmill possible. Most of the bulk was done taking .2" down and .2" step over on a 1/2" at 92" / min. I hog out everything with the stock to leave set to default (I think is .02) to .03 depending on the material I’m working with. Then I use other tool paths to finish.
For instance a simple pocket. I mill with 1/2" leaving .04", then follow up with a contour with stock to leave unchecked, and followed by a pocket set to full depth in one pass.
Shoot me a pm I have a gwizzard which calculates feeds and speeds.
If your running .5mm what are you cutting? Some metal?