Just a little FYI.
Last night my housemate came home with a "demo" version of a Benchmade 556; it has a clear plastic handle and the blade has no edge.
So he started working on it with the Sharpmaker.
After about 1 hour on the grey rods he could slice paper, an hour later it was popping hair.
I would not belive it unless I saw it.
I am sure the diamond rods would have made it faster but this proved to me that the grey / white rods are enough to maintain most blades. This knife was 440c which probably helped; I wonder if this would have worked in S30V?
Anyway I was really impressed.