Here are some of my Pocket Stones for comparison, I left out the Worksharp guided field sharpener because it's too bulky for the pockets unless your wearing cargo pants and using the " knee banger" cargo pockets
The Spydercos get allot of pocket time, lots of wear on the suede. I like to keep one in my front right pocket at all times
I like the leather over the suede in look, feel and durability but the suede is has the advantage in stropping and loading compound better.
These are the Gritomatic CBN metallic bonded stones, while the technology is superior, some people heads would explode when they hear the price. It's CBN abrasive all the way through in a bonding matrix of copper/Tin alloy. A cleaver and expensive way to get around the abrasive tear out and finishing problems of the coated abrasives. These are designed for the edge pro not necessarily for pockets
Lansky super sapphire stone. Designed for the lansky, like a poor man's pocket UF stone but not as good as the Spyderco stuff.
A traditional pocket natural Stone from Finland. Really just for carbon steels, doesn't have the cutting power for fancy steel. Very traditional. Needs oil to keep from clogging. Grooved side for fishing hooks
This one is EVERYONEs first sharpener before we learn better. The Smiths "abomination". Pocket Pal. The diamond rod is rad though
Back to the Fallkniven and the double stuff.
The Newer DC4 and DC3 have a much better darker gray stone, cuts much faster then the brown ceramic they had before which had "grooves" on the surface and was very slow and loaded bad. I dropped my DC4 by accident and it cracked the stone but the plate seems to be holding it together. My DC3 is the older version with the brown ceramic which isn't as nice as the brown ceramic on the Spyderco.
The brown ceramic on the Spyderco cuts more aggressive and has better feedback when Sharpening then the dc3 brown ceramic, both load very badly though and start burnishing more then cutting if not cleaned.
CBN vs Diamond.
The DB2 had a lot coarser grit out of box then the DC4 and DC3
Both are very sensitive to tear out and light pressure ONLY should be used. They all have smoothed out but the DB2 has more life to it and breaks in better.
The most underrated feature of the DB2 is the trapazoidal shape. It's not highlighted on retailer web pics.
The original has the fine side "proud" or bigger then the brown side
Because of the trapazoidal shape the DB2 is bigger, and also heavier then the db1 due to the full metal plate but not so much to prevent EDC.
All the white ceramic, just like the brown ceramic is prone to load up, but it's not as much of an issue since they aren't used to remove lot of material. The lansky is a bit finer but not quite UF fine. The ceramic on the db1 and db2 is the same. The groove is for hooks and needles and doesn't interfere with regular Sharpening.
These idahone super erasers are kinda handy for cleaning out the metal fillings that load up the ceramic. It's a rubber erasers with grit. It has a softer durmeter then the traditional rust erasers sold from Japan.
Works just like a pencil eraser. The grit has to be throughly cleaned off though. On little partical make a crunchy noise on the stone and it's back to wiping it off on the pants and blowing unseen partical of the stone haha.
A clean stone is a working stone
My favorite part about the Double Stuff 2 is that that trapazoidal shape make the corners work like a honing rod, very very useful.
Completly replaces the only cool and useful feature on the pocket Pal.
What I like about the suede is loading it with a CBN emulsion
The emulsion is better then the spray for this because emulsions make the suede stiffer which is nice since it's so floppy.
It's rubbed in and left to dry.
This is my favorite way to clean my Spyderco abrasives at home, this stuff also cleanens rust off like a BEAST everyone should have bar keepers friend. Very hand for the UF bench stone.