I do use mine with mineral oil. Most often I use them to recondition the carbide cutters I use to tool the surface of my Washboards (really just the extra fine DMT).
I honestly do not much like to use them on most cutlery. I believe Jason has stated the Shapton Pro waterstones can do even the higher Vanadium carbide steels, even if maybe not the best choice, so would be a strong contender. Starting from scratch, if I had to buy something for high VC steel I'd get the diamond jointer stone from Global tooling, and just use silicon carbide stones to do the base work - one only needs diamonds to take it to higher polish.
One could also use silicon carbide wet/dry to about 600-800 grit and transition to diamond lapping film for 12 micron and finish with 1 micron. I would buy DMTs if most of my cutlery were high Vanadium, for a piece or two I'd improvise the fine finish and get some stones I enjoy working with more for everything else.