I have recently purchased the Red pack Israeli Personna razor blades from West Coast Shaving.
After a few shaves, I want to say that I am truly impressed with them.
The Red pack Israeli Personna are extremely sharp blades.
The only blades I know that are sharper than these are the Feather.
Made with high quality stainless steel and a Platinum Chrome coating, they give a very close, smooth and comfortable shave.
And they are also very reasonably priced.
The Red Pack Israeli Personna have a spot in my short list of favourite DE razor blades.