I just bought a 211W151, servo motor and table. I spent some time studying this machine before I bought it. I didn't have a lot of money to work with, but considering what was for sale and my low budget, I'm happy with what I got. I noticed that it's getting a bit more than 5 spi, and after 5 inches it gains 2 extra stiches. I don't know if I can adjust that. But if any one knows how could they please tell me. It was out of Time and needed some work before I could use it. But for getting something to do leather and doing car seat repair its great for the price at this time.