As I said a great article. I have an under powered 1940 Atlas F model lathe that needs the ways scraped more then a power increase. But as an engineer that design parts on paper I know my machining skills are poor so I consider the low power as a way of keeping things safer. I have made an upgrade to it however; purchase a quick change gearbox for an Atlas lathe built by another company but basically the same design ~ late 1950 vintage. The used gearboxes for the 40's models are worn out so I added mounting problem but eliminated gear problems. Motor would be the next upgrade on may list. Also have a Fung Fu RF40 bench top milling machine, used, that has a 3phase 3/4 Hp motor. I added a VFD drive.