The Robeson's and Genco's claims to match a razor for a specific type of beards is all gimmicky to me. Way to many variable to claims that this type will work better for your type of face. I most certainly agree that a heavy ground razor works better for a heavy beard or a few days worth of growth, all about the heft behind the blade, just like self-propelled mower is easier to use then one without but in the end its the same results.
I do have a Puma "Pour barbe tres dure" = for heavy beards, full hollow great shaver, but in the end after a few days without shaving I will still reach for a self-propelled razor.
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