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No probs. Yes someone who uses & knows how to hone one is ideal. The risk otherwise, is putting premature wear on the soft iron in inexperienced hands.

I wouldn't go below 12k for finishing an Iwasaki. I second the advice to get it honed by someone experienced with them.

I have no idea what the stones are that you have but if they are for...

Nothing wrong with the razor. Some have muted toes as per pic below.
It may well need honing tho, as may your shaving skills.

Nothing wrong with the razor. Some have muted toes.
It may well need honing tho, as may your shaving skills.