WTF??? On hard surfaces you use a SOFT stone to hone and of soft surfaces you use a HARD stone.
If you are honing a SBC you use a hard stone because that junk is so soft.
If you are honing a quality aftermarket block or sleeve you need soft stones.
You aren’t teaching any machinists on here a damned thing. You are just making an *** of yourself and your ignorance is appalling.