Hi palyujl.
It kinda depends on which stainless steels they are and sometimes even which maker (the heat treatment is often just as important as the steel). Also important is where you live as this will affect which stones are available at a reasonable cost (for example, postage from USA to Aus can be pricey and import taxes in EU can be punishing, turning a great deal into a not so great deal).
The best thing to do is fill out the questionnaire found in "sharpening station".
I think the consensus is don't overpolish, you need some teeth to your edge for kitchen work (this is very different to razors).
My take on the general consensus is:
Western stainless: 400 grit and deburr on 1k.
Japanese style stainless and most carbon (including most custom western stainless): 1k (if required) then 3-6K.
Yanagibas probably benefit from 8-12k for slicing sashimi.
I personally quite like the 1k, 8k progression on carbon and PM stainless steels. Retains some toothiness but also quite keen.
Among those cited I've only used the JNS 6K. Like.
In AU have you explored the offerings of Knives and Stones?
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