I had a 3520B powermatic that was a good machine. A fellow turner was in the market for one and I had an itch for a bigger lathe. The sliding headstock and the pivoting tailstock was what sold me on the Robust. I just couldn't make myself pull the trigger even though I knew the PM could be sold with a phone call. What finally pushed me over the edge was knowing that I had a big Lund boat and motor that cost more used than the new Robust would cost. The Lund wasn't being used nearly as often as my current lathe was. I have never regretted the choice of an Robust AB. It's an awesome machine. The fact that you can roll the tailstock out of the way effortlessly and it always lines back up perfect in an engineering marvel.