In my opinion, more than the blade itself, the prep and technique are the single factors which can stretch the usability of a blade. I'm also using now a blade for several weeks and my experience is that if my prep and technique is good, I can still get daily BBS shaves out of that blade. But it requires a good amount of concentration from me.
Thus, I agree that the longevity of a blade is far much longer than a few days, but after those few days a good prep and technique become crucial.
Thus, I agree that the longevity of a blade is far much longer than a few days, but after those few days a good prep and technique become crucial.