And there are many trying to cash in on the mistique. I got one cd that seemed to offer enlightenment but it was really just junk. I did use it to make a run at my crosslide and compound and they were greatly improved by my very modest attempt. I was very very careful and didn't shoot for perfection, just knocking down the very badly butchered high points and I learned a lot. Then I caught wind of Machine Tool Reconditioning by Connelly and found a copy. Very enlightening and yeah quite a tome at 500+pages. But just reading the spots that are pertinent cut down on the wade. You already have DI's, height gage and surface plate, all you need equipment wise is a good carbide tipped scraper. I bought cheap ones the cd recommended and that was the main reason I struggled. Bought a good Anderson scraper and actually got something done! I'm certainly not advocating everybody do it, but it's a good skill to have even if it's a huge time sink.