You see mil in small scale CAD all the time, circuit boards and chips and footprints are close to 50% mils vs mm in my experience if not more. I use mm, but it

You see mil in small scale CAD all the time, circuit boards and chips and footprints are close to 50% mils vs mm in my experience if not more. I use mm, but it’s often a pain when premade parts and libraries are in mils.