LOL... I get 3 to 6 shaves out of an AC blade. I can't imagine getting 73 shaves out of a blade.Well, if you are going to assume a sharp blade, I'm going to say "Assuming you use ARKO."
My current Astra SP blade has 73 saves on it.
Now that we've eliminated the blade and the soap, all that's left is technique.
Q.E.D.
My point, however poorly made, was questioning if people here are shaving with dull blades. Is that a common practice?