+1, ...almost. NOS Wilkinson Light Brigades are tied with P74, for me, as my very best blade. Just as smooth for me usually but occasionally I doubt that conclusion. In the Light Brigades favor I mean.P74. It's not even close.
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My top 5:
1. GSB
2. Perma-Sharp Super
3. 7 O'Clock SuperEdge
4. Voskhod
5. Super-Max Blue Diamond
Edit: Removed Astra SP and replaced with Super-Max Blue Diamond
Good move. I find the Blue Diamond to be far superior to the ASP.
When you say 7 O'Clock SuperEdge, are you referring to the 7 O'Clock SharpEdge Yellow. I have found them to be great blades in aggressive razors that have lots of face feel and need a really smooth blade.
!!!!!!!!!For me, a blade is never smooth shaving until it has at least 20 shaves on it. I dread new blades of almost any type. They all a a bit harsh for the first 4-10 shaves. The first 1-3 shaves are pretty decent. shaves 10-25 are better by tiny degrees.
Then from about 25 on to the end of the blades useful life are the best and smoothest shave
Feather blades normally last me from 50-sometimes over 100 shaves.
Astra SP get 75-120. The Astra are the smoothest for the largest number of shaves for modern blades.
7'O Clock Greens get 75-100 good shaves.
Most all modern blades will work for me for nearly 100 shaves.
But the best blades I have found are Schick Plus Platinum blades.
These are vintage blades made till the 1990's.
The best ones are 1960's-1987 or so.
I have several hundred of these that I got in a package lot from an auction site.
I have used them for over 200 shaves on one occasion.
Since then the next blades tend to runout around 175 shaves.
but from about the 5th shave till the last its like shaving with a laser.
You feel nothing when they make a pass and the hair is just gone.
If my razor didn't make a sound you wouldn't even know there was a blade there.
But I do recognize I am an odd-ball guy who is one of the long use blade nuts!
By the way I use a rotation of razors some 10-15 all vintage, mostly Gillette with a few exceptions. My favorite razor at the present is a Flat Bottom English Tech with a Vintage handle.