Turning forever, but trying to get into flat work, which I gave up because I was a better turner. Anyway, I have a number of planes, and the soles on them are all slightly concave. Is this a design element? I always thought they were supposed to be dead flat. These include a Stanley jointer plane, some Lie Neilson planes, and even a Bridge City 12 inch plane.
I do have one cheap maroon Stanley one that was really bad, and got it dead flat on a granite stone with 80 and 220 grit abrasives.
robo hippy