GEM Pushbutton blades.

[Boru62]

I sometimes palm strop a fresh GEM blade a few times before first use.
I like to think it helps, but I might be imagining it.
Therefore I normally forget to do it.

I try and use them in a milder razor for the first go but maybe you've found a use for palm stropping, i.e to dull the blade, makes more sense than the other idea.