I was a mechanic at the phone company for 30-years They still had points when I started, and we had 400 vehicles. We always set them with a feeler gauge to the wide side because they were going to wear down anyway. We only checked them with a Sun scope and dwell meter when we had one doing something weird. On my personal collector cars, I set them right in the middle of the range and then check them with a dwell meter. On my original 66 GT-350 with factory dual points. I have to put a piece of cardboard between one set of points, adjust the other set then check the dwell, then do the same to the second set and then remove the cardboard and look at combined dwell of both. It's a little bit of a pain in the butt but I rarely drive it. It's not necessary to do that but why not make it perfect.
It's also a good idea after you have changed the points to set the timing and then check the vacuum diaphragm (if it has one) on the distributor to make sure its advancing smoothly. It's not uncommen for them to get a hole in the diaphrmn and quit working.
At work I always liked the Chevy distributors that had an access hole in the distributor for an allen wrench that could adjust the dwell while it was running. I hate to give Chevy the credit, but it was a really good idea.