First off very cool and it’s nice to see people learning the craft!!
Awesome that you share your knowledge, Mike.
Personally when I do headlights anymore, I just remove them from the vehicle. Much easier to work on them. Most headlight assemblies remove rather easily. I have a few vices with soft jaws that make it easy for me to hold them while sanding and buffing. Some headlights don’t have clearance to properly sand and buff due to a bumper or whatever in the way.
Just some food for thought for anyone reading in the future that may have an issue doing them on a vehicle..,,