What are your experiences with the above? I heard a lot of positive things about so I got a pack. The worst blade I've had in recent memory. Very rough cutting with lots of tugging and irritation. Using in my Fatip and Krona. The Fatip gives astonishingly good shaves with Astra SP, rainbows, British Wilkies and Israeli Personnas. The Schick likes those blades too. Maybe I have a bad batch of Iridiums.