Polsilver long life

Recently I've been exclusively using Polsilver blades.  For some reason this last box of blades have had outstanding  life. I've used each one for at least 8-10 shaves without really losing their effectiveness. I have to wonder how many blades I've tossed prematurely in the past. Last night I thought the blade must be on its last leg after more than a week but I received a terrific two pass shave in a Timeless Ti open comb. I'm going to give it at least a few more shaves.  

Anyone else had a batch of blades that seemed superior?

The Wizamet Iridium Supers in the blue packaging that I have been using for the past eight years have always provided me with 10+ shaves.
I dispose of the blades after 10 shaves even though I don't really have to, in most cases,

I try to use most blades for at least 8 shaves. (I should note that I’m a two pass shaver.)

What I’ve noticed with most blades is that they can easily be used for at least half a dozen shaves. Just recently, a Gillette Silver Blue I was using felt just slightly rough on shave #7. I decided to keep it still, and shave #8 was absolutely fine again.

I do believe most of us switch blades more often than is necessary. I’ve read of some taking their regular Feather or Wilkinson blade to several dozen shaves. Haven’t had the mind to try that yet myself, but apparently it can be done…

I usually use a Super Iridium for a dozen shaves before pitching it. I get 24 shaves from each vintage Gillette 'Swede,' Personna 74, and Wilkinson Light Brigade, which is fortunate given their high cost.

I personally think how coarse your hair is has a huge impact on blade life. Typically the sharper a blade, the quicker it will lose its edge (this is the same concept in knife sharpening and bevel selection). Obviously the metallurgy plays a part in edge retention as well, but generally speaking a sharper edge should lose its characteristics at a quicker rate with all else being equal.

Polsilver are one of my top choices, but I’ve never tried to get more than 4 shaves out of one. Maybe I should give it a go.

I also use the Polsilver and love them. I usually change the blade after about seven or eight shaves.

That's the thing about blade life and blades. I rarely get more than 4 shaves from any blade I've tried (three with feather) and have always wondered about differences in beards. POlsilver Super Iridium are my favorites.

I have experienced variations in sharpness and quality from box to box of the same blade brand. Given all the variables that go into the production that's to be expected.

I usually get 7 quality shaves from KAI blades. Could probably go longer, just change every Sunday morning out of habit and I don't have to keep track of how many times I have used each blade.

I usually get 7 quality shaves from KAI blades.  Could probably go longer,  just change every Sunday morning out of habit and I don't have to keep track of how many times I have used each blade.

That is a very rational and simple method of changing blades when you have great DE blades.