I posted here a while back that I wasn't that fond of Astra SP blades, as they are too sharp for me. I've been very happy with Gillette Super Thin and Supermax Stainless Steel blades.
But I bought a nice big yellow Big Roc razor from Hong Kong, that was way too mild. My Gillette Super Thin and Supermax SS blades didn't work at all well in it, so I put an Astra SP blade in it, which did work well - far too well, as I always get nicks when I shave with it.
So I've been shaving with the Big Roc and Astra SP nearly every second shave, hoping that the blade would dull a bit and behave like my other stainless steel blades behave in my other razors.
Only problem is, I've now shaved some 10 or 12 times with that Astra SP blade, and it still seems as sharp as the first day I put it in the Big Roc.
Does anybody have an idea of how many shaves it takes before my Astra SP blade starts behaving like a Gillette Super Thin and Supermax Stainless Steel blade?