I agree completely I don't get how I could be confused at all

I'm not really looking for "how do I hone a razor" since there are plenty of (very helpful) videos out there.
My main issue was to find some path within this rainforest of stones.

I think the 12K or 16K stone should be fine to start on (and considering the prices I've seen on the 16K glass stones I'm leaning towards a 12K :P). My only confusion now is whether a higher grit (paste or stone) is really needed. (I guess the answer would be, not really but it is advised )