From Callaham:
The Enhanced Vintage saddles to me is our best design. It maintains the vintage look while eliminating the problem of the string moving on the saddle and altering string spacing. If you are using string benders, it is the saddle I would suggest and I would recommend the stainless steel saddle. Just like our original saddle it will give perfect intonation.
All our saddles are hand polished and buffed to insure they are free of burrs that can cut strings.