I have a venerable 1949 South Bend 9" lathe. Sadly, its cross-slide nut (or screw, or both) have a fair amount of wear, as I can grab the cross-slide table and move it nearly 1/16" with my hands. I'm whittling down a block of 303 stainless and it seems like it's taking forever. The machine is cutting the 303, but I can only advance the cutter about .010" between passes, and reducing the diameter .020" at a time is going to mean a lot of lathe work. I don't really have to do it, of course, but it has led me to wonder if the slop in my cross-slide screw actually contributes to lack of rigidity while turning. I have always figured as long as the slack in the screw was taken up, it wouldn't make any difference whether there were .004" of backlash or .040". Yet I don't have a complete understanding so I thought I'd post this to the group. There is an advertiser in HSM that offers new cross-slide nuts and screws for my lathe at what seems like a reasonable price.