I sharpened this September 8th and have been carrying it pretty much non-stop aside from work, where I need to carry a Salt. It still shaves.
Here's my post from the community sharpening journal about the edge I gave it:
vivi wrote: ↑
Mon Sep 07, 2020 8:58 pm
With the weather cooling off I wanted my Police 4 K390 ready to go. The edge it had was pretty bad, it had been used until it was really dull.
I reset the edge on a 300 grit diamond plate. Once I had a burr coming up on either side, I switched to a lighter pressure and deburred as best I could on that stone. It could scrape shave. Then I gave each side a few passes on a strop loaded with 7 micron diamond paste.
It's a very aggressive edge. I tested it out on some rope and plastic wrap and it really bites into materials.
This will contrast nicely with my polished VG10 Police 3 optimized for push cutting. My VG10 Police 4 Lightweight is ground on a DMT coarse then given a microbevel on medium spyderco stones, so it falls it the middle.
I've since put the same edge on my VG10 Police 4 Lightweight. I think next time my Siren needs sharpened I'm going to try a similar edge on that knife. I've always finished my LC200N knives on the medium rods, haven't tried giving it a really coarse edge.
I highly suggest playing around with these sorts of edges.
For some reason I seem to get cleaner, coarse edges on the 300 grit side of my harbor freight 4 sided diamond block than I do my broken in diamond sharpmaker rods. I haven't had good luck getting shaving sharpness off those. But they do leave a nice, aggressive edge that slices and slices.