24 and 60 grit stones are far too coarse to be used on most any knife. They leave deep scratches that are harder to remove than the damage to the edge itself, for anyone but a professional these stones far too coarse and can easily screw up a blade. The 140 Atoma however is a monster of a metal remover and easily followed with other diamond plates for a good coarse stone, I like the Naniwa Pro 400 or Shapton Pro 220-320.
Once a bevel has been set there is really no need to go back to such coarse stones unless the edge becomes heavily chipped or tip repair is needed. On average I use a 1000 grit waterstone for most all sharpening needs, it's about equivalent to a DMT Coarse in speed but with a finer scratch pattern that makes further refinement easy.
When it comes time to sharpen I typically use my Shapton Pro 1k and 5k. I carry a Spyderco Endura in VG-10 steel which responds very well to the Shapton stones and the 5k finish.
