It may seem like nonsense, but your favorite blade in the Muhle
most likely will
not be a good blade with the new BB. There is quite a
difference in the two razors. It's good that you are looking at this patiently,
and are willing to spend some time to figure out what will work.
As others have said, you'll just need to try different blades until you hit on
the right one. Don't rule out a blade that is absolutely horrid in your Muhle.
I have a Fatip Piccolo that eluded me for several weeks.
I probably went through a dozen different blades in it, and nothing worked well.
Then out of desperation I dug a pack of Derby's out of my "junk" box,
and I've never looked back. They work like a champ, every time.
In fact, that Fatip loaded with a new Derby is my go to machine when I've not
shaved for 3 days or more.
So hang in there. You already know that the Silver Blue and the 7 OC Sharp Edge aren't good,
so now it's time to dig out some Sharks, PolSilvers, Big Bens, or maybe even a Dorco!
Best of luck in your search Jasio,
and Happy Shaving!

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