Yeah man, I don't know much about sharpening myself other than what I learned from my dad back when I was a cub scout, but I really like doing things with my hands and since someone left a couple of diamond stones around my apartment a while back, I obviously decided to see what I could do. My feeling about gadgets is that they're cool, but people have been able to get wicked edges since long before these things were invented, so I should be able to figure it out too. Ummm... but yeah, like I said, I'm using a diamond stone and I don't think they had those in the olden days. Well anyway, I digress. Here's a few things I learned:
* If you're using a diamond stone put some water on it. That seems to work better. Just make sure you dry it when you're done, and occasionally scrub it with an old toothbrush or something.
* I don't worry about the angle, or at least, don't worry about measuring it. Once upon a time I heard something about stacking nickels or dimes or something... I think that's ****. Lay the edge on the stone and tilt it until it's flush. That's the angle you want to maintain.
* Go from course to fine. Obviously.
* "Slice" the knife forward. Sounds obvious, but this gets tricky when you start moving toward the tip. Think about it: if the tip curves 90 degrees, then as you move to the tip you should be curving the motion of your sharpening. When you watch people sharpen kitchen knives on those sharpening rods it sometimes looks like they're drawing it down the edge instead of across it but that's incorrect. Always move across the edge.
* Maybe on a course stone you can bare down a bit on the initial passes, but only a few times. After that go light, really light. That's when the next point begins to make sense...
* Listen! When it's getting really sharp it'll turn from a gravely, bumping, grinding sound to a smoother, more single-toned scrape.
* Strop! A lot. I'm just using an old belt that I've conditioned with mink oil and it works great. Stropping is what really brings out the edge imo.
That's all I got. Like I said, I've only been doing this a short while, but I've been getting some awesome edges and have removed half the hair on my left arm, so that's something. Guys who know more about this than me: am I on the right track?