When I say my razor is a Dovo Inox Stainless Steel am I being redundant? Are all Dovo Inox's stainless steel while a carbon steel blade would have a different model name besides Inox?

I am thinking of purchasing a Norton Waterstone to go with my Inox, I see on their web site that they have several grits would you recommend a single grit or a double grit? I had my third straight razor shave two nights ago, did not get to do one last night, as my wife took over the bathroom. Which grit size would you recommend 200, 1K, 4K single grit or 220/1K, 1K/4K or 4K/8K double grit? Personally I like the idea of a double grit better. I am leaning towards the 1K/4K double grit.

Are the Norton stones good hones for a Dovo Inox?