I used the 1000 grit EP stone quite a while before using anything else. It will get a pretty shiny bevel except I always have a few random scratches on what otherwise is not "mirror" but pretty shiny nonetheless. I haven't used one for a while but I think it may resemble the finish of a 2k or 4k Shapton glass stone. The Shapton glass are a much more refined (for lack of a better word) stone capable of better performance when wanting ultimate results. But, I do think (assume) the grit numbers are pretty accurate concerning different stones. The EP 1000 grit stone is a pretty fine grit IMO. Also, Unless you really want superior results the EP stones are perfectly fine and will keep a knife edge is top notch shape for far less money. The great thing here is some people can't spend the $ for the Shapton (and others) priceframe. Actually, I shouldn't, given my financial standing, I just do it anyway.
My 10 starving kids don't need new shoes this year anyway.
I got the expensive stones just because I wanted to see how sharp I could get an edge, not because I needed it. I wonder who does actually need the super sharp edges. The only occupation I can think of is a surgeon. A cut with a razor sharp razor blade heals much faster than the same cut with a very toothy or dull knife. So, a surgeon would want this level of sharp so the victim (I mean patient
) can heal faster. This is just me thinking and I could be way off.