I love my M4 Chief, K390 Police etc., but nothing beats this model for practical summer time carry.
The past week I've been carrying this one in particular:

I have every Pacific Salt. PE, SE, H1, LC200N. Why PE H1 out of all my choices available?

I had been carrying this Pacific Salt, a PE LC200N full flat ground model.
I love full flat grinds and I've enjoyed using LC200N over the years.
But the edge retention on this knife left me unimpressed to be honest. Same story with my Siren, as much as I like that knife.
So I decided I wanted to get a fresh H1 PE Pacific Salt and compare the edge retention to the LC200N Pacific.
Common knowledge is LC200N holds an edge much better, but to be completely honest I'm not so sure I've seen it.
First thing I did was reprofile the H1 PE:

I brought it down to the 10-12 degrees per side ballpark with a 200 grit diamond plate. Refined the apex on the 200 grit stone until it would cleanly shave. Then stropped on 40 micron about 5 times per side and the edge caught hairs above the skin despite how toothy it felt when I ran my nail down the apex.
That was a few days ago. Carried this folder every day since. The knife still cleanly shaves.
I knew this edge configuration would work to H1's strengths and weaknesses.
I used a PE Aqua Salt for edge retention experiments years ago.
At the time I sharpened every knife with the fine or ultrafine rods.
Tried the medium rods on the Aqua Salt and saw better edge retention. Same thing when I stepped down to a DMT X coarse edge.
Superior edge retention was found each time I sharpened to a lower grit with H1.

You can read more about the benefits of low grit sharpening here - https://forum.spyderco.com/viewtopic.php?t=85096
H1 in PE loses a fine apex very easily due to how soft it is. Coarse edges are like a cheat code for this steel. While a fine apex loses cutting ability very fast as the apex deforms, the effect is not as drastic on a toothy, microserrated edge.
So I take the geometry thin because H1's toughness allows for acute angles to remain stable. I keep the apex coarse to keep slicing aggression high day after day, week after week.
In fact I will go as far to say that based on casual observations, this knife appears to be capable of outcutting my M4 and Rex45 Chiefs if I sharpen the Chiefs on the fine sharpmaker rods.
Of course, all three knives sharpened the same, the Rex45 will easily outcut H1 PE.
But this apples to oranges comparison is important, because it illustrates how sharpening technique can trump steel chemistry when it comes to edge performance.
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EDIT: Updating the original post with some videos
https://youtube.com/watch?v=s4igtwiBK1o
https://youtube.com/watch?v=p1vzDnHZI-M
There's a cutting demo followed by a sharpening demonstration.
Here is a rope cutting video:
https://youtube.com/watch?v=VbDHhIx-ZO4
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