I used mine, but turned the feet down to flat to get rid of the as cast surface (leaves the three pads that didn't seen even), then milled the bottom if the hole to make it parallel with the foot side. Bottom of the hole was cast roundish, flat bottom lets the adjusting bolt sit on a square surface. I suppose a ball nose in the hole, and rounding the end of the bolt would allow the pad to swivel to compensate for an uneven floor. I also raised the lathe using 3" square tube and 3/4" plate welded to the bottom, tapped for 1/2-20 bolts - similar to what mjks did (at 6-4, apparently I'm taller than most Asians), this also spreads the footprint out front to back for better stability. Interest comment about felt to "marry" the pads to the floor.