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hhmmmm, i got 1200 as well, but not yet tried.

You're so constructive today! :)

Makes sense. We used sand inbetween, cause the stones are very much the same.

Yep, just an ordinary glass cutting board.
Can't use them for cutting anyway cause they dull all your kitchen knives, lol
You can also dumpster dive some old glass cooking plate. Its a little bit...

Yep, sand paper wears off fast and it works only slowly.
The worst thing in my opinion though, is that the last bits of a dish are always the most difficult ones to work out, cause the amount of...

In that case, yes. :)

Don't flatten one hone with another.
We did that with 60 x 80 cm lithos in school and ended up with all dished ones. Great joy, LOL

220 grit silicon carbide on glass, followed by w/d sand paper up to 400 grit.
I do it this way because its fast.