Should have tossed yesterday at 9. Yesterday’s shave was comfo and close. Today the blade was very rough with no warning, however the shave was still DFS to BBS with a Gem Micromatic Clog-Pruf.
Astra SP 4 shaves.
I've just recently used Astra SP blades and I have found that they work great for 3 shaves, but the performance degrades on the 4th use.
So, from now on, out they go after 3 uses.