Just found the sticky post "Honing Tips From Lynn", which said:

The 4K Norton is plenty abrasive. I use it to remove small nicks rather than going to a lower grit.
and

Most small nicks can be removed with the Norton 4K stone and some circular strokes. The 1K is pretty agressive and really should only be used for more severe type jobs.
So, leaning towards the 3-stone set. But also looking at the Norton Combo 4k/8k. If I go that route, though, wondering if I should also get a 12k stone for polishing...