by israeli blue do u mean crystals? if so I agree with u . crystals (come in a 10 pk with black exterior, marked double platinum) . the actual razor blade plastic pack has a blue cover over the blades. great overall. my first 100 pk that I'm to go through. enjoying my shaves and technique is always improving. always room for that
They just shipped today from milogciachez in Spain. I'll give you a report after four or five shaves.
I want to see how this all turns out. Many people say that the blade that works great in one razor won't take a NJ inspection sticker off a windshield loaded into another!
I've never had any issues using any blade in any razor. They all work fine for me.