I bought this little gem for canoeing/take with.
Scroll down for directions and care.
Hardest part is determining the proper angle they recommend.
Works well on serrated edges with a little practice and patience

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JJ
I am always on the lookout for improvements. I have always just used the following to sharpen my filet knife on the trail and have never tried anything else.
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I'm more or less satisfied but if there is something better I'm certainly interested. Have you or anyone else tried both products? What's your take?

Sweet looking knife BTW Kerry. Seems like you received good advice.

MT, You can keep it lightly oiled with the oil from your nose and it won't rust. Just don't try taking the knife blade to your nose. Wipe your finger tip on your nose and rub it onto your knife. Also don't cut something acidic, like a lemon.

I'm not sure I like the direction that this conversation is going.  To each his own, I guess, but I believe in the purity of store bought nose oil.  You can get virgin, all natural, first pressing at selected health food stores or a wide selection of less expensive nose oils at Nose Oil World.

Here's what I use for sharpening:
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Even though it's a bit pricey I like this sharpening system because it is lightweight, sturdy, compact, lubricates with water and the diamond stones cut quickly plus it's a real sharpening system not a plastic toy.  At home I prefer to use oil stones and finish with black Arkansas.  I used to be a fine furniture maker and would get my blades literally razor sharp.  But that's all pretty much macho stuff since after the first pass the blade ultimately loses its super sharp status and becomes merely sharp, or dare I say, sharp enough.

MT,

I believe your correct about the carbide rusting. I don't know that it would be a problem that would require " nose oil"
Seems you could just blow the excess water off and let dry in sun or wipe dry. I think most ( might be wrong here) fishermen if there filleting regularly like to touch up the edge before each session. I think the don't wash was geared more to using it and storing in a drawer for a length of time before using again.

Kerry,

I'm a big fan of the DMT diamond whetstones. I have the single grit models because when I purchased them, I got a package special.
I have a coarse/medium/extra fine for my kitchen knifes and bought an extra coarse for touching up my camp axe on a trip.
Only drawback for many folks is that you need to know how to hold it and maintain a proper sharpening angle, something the experts even disagree on. I dulled a few before I got the hang of it. Being a fine furniture maker I'm sure you had your moments before you got it down pat

The pocket ones with the pre-set angles are adequate for most people and take the guesswork out of sharpening, if you haven't done it much.
Nothing worse than a dull knife or more dangerous.