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If you use a regular blade, the stone will either round or completely abrade the teeth making that blade completely useless.

Indeed carbide coated blade works great as pointed that out in post #8...

Do you just score the hone, like you would a tile, and then break in two along the cut?

I meant on your hack saw, did you use a carbide blade or regular?

Did you use a carbide coated blade or regular one?

Carbide coated hacksaw blade under running water works fine. I have hand cut some pretty hard J-Nats with mine, the Chosera will be easy compared.
Something like that will work fine ...