The Delta band saw table suffers a severe bowing that keeps any wok from moving smoothly across the top. Leveling the top is easy enough with a facing mill, but a few problems crop up with the clamping method. The insert bore is chewed all to heck as well. Finding center and re-boring. This is fun. Then we make up a new insert out of Stainless steel. All good fun in the morning. The Delta band saw is now coming together. Restoration or Improvement over original?