Nick,
On those grind lines, I should have mentioned this. I used waterstones. I went to about 220 on the grinder (Vagnino style if you know what I mean) then switched to stones. 1000 and 2000.
However, that S30V needs so much work it opened up the grain and made an ugly spot at 2000. I went back to 1000 to clean it out, figuring I did something. Then it happened again at 2000. So I finished the knife with 600 and 1500 paper.
I'm going to stick with the stones, tho. They're great after the grinder to get everything straight and flat. Then move to paper for the final finish.
Steve