“I see (and I'm testing too this way) many reputable guys going from Sinth 1K directly to a fine/hard Jnat (& naguras/tomos of course).
So, i was guessing if isn't too much stress for the edge an 1/3/5/8/12 K synthetic pyramid (as many others do)?
Aren't these too near each other? bevel?”
Couldn't be an 1/5/8 (or 10/12) K enough to get a good polished

Great question, that does not get discussed enough. It depends on the razor condition and the stones.

All 1k stones leave 1k stria, but not all other stones are the same in terms of performance. Generally, with most quality stones you can make seemingly large grit jumps, because once you remove the deep 1k stria probably 75-90 % of the hard work is done, if you remove all the 1k stria. Do not remove all the deep 1k stria and you will fight the edge all the way.

So, if you go from 1k to a 2 or 3k and remove all the deep stria, you can then make a large jump to 8 or 12k easily.

1k to Jnat is a whole different kettle of fish and performance, because Jnat slurry is friable, starts out coarse and breaks down to very fine. Add to that, you can add slurry to be more aggressive or work it finer. Synthetic stone grit is not friable, Ik grit remains 1k grit.

A 1k, 2-3k 8 or 12k is very doable. For Maintenance one could easily do a 2or3k bevel reset and 8 or 12k. A 12k super stone can be very aggressive with slurry and pressure.

You don’t need to soak if you use a squirt bottle and plastic tray. Quick dunk and hone, add a squirt as needed.