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Yes , I think you're misunderstanding as I'm not referring to rust but the geometry of the razor.
Take a look here for a better explanation:...

Yes , the last pic is what I based by observation on. You can see the edge is flush with the stabiliser.

+1.. The edge is already at the stabiliser. Reshaping the heel will future proof the edge.
If you simply hone forward of the stabiliser you risk creating a spur .