I have a number of shave-ready razors. Quite a few, actually, due to some good fortune in swapping some vintage fountain pens (which I collect) with a straight vet.

I have a Naniwa 12k, Crox paste, and a good leather strop.

So here are my questions:

Assuming I don't damage the razors or roll the edges during stropping, when -- if ever would I need to hone below 12k? Could I go a year or more without dipping below 12K?

Same goes for 8k. For these razors, assuming no damage / rolling: Would I ever need to go to 8K? Below 8K? How long could I expect to go before hitting the 8K or dipping below the 8K?

I am just trying to prioritize where I spend $ as bargains arise. Since I've decided to go with all Naniwa stones, the question is whether / when I buy the 8k, 5k, and 1k. I probably won't end up buying all at once.

I am just trying to assess where these hones fit in with maintaining my reserve of shave-ready razors. Perhaps they are really just suitable for honing stuff I acquire in relatively rough shape? E.g., stuff I find from antique stores, the Bay, and the like.

Thanks for the help.