No rocket science or magic to hand sharpening, just practice. What works for one guy may not work for the next one, either. Shoot, it took me years to finally get my system half-way perfected.
I use DMT pocket stones probably 90% of the time anymore on all my knives, with pretty good results. I also use a Gatco tri-hone for recurved areas.
I like the DMTs because I can carry them with me pretty much anywhere, so I always have one or two. I carry a red (fine) and a green (X-fine) with me, and keep a blue one handy in the tool box or at home in my knife drawer.
I don't worry too much about angle, in fact most of my users now have somewhat convexed edges. I just draw them across the stone until I get a burr, then flip it over and remove the burr. Then a few light passes on both sides to finish off the edge, and I work to keep the corners knocked off since I like convexed edges better. I strop them when I am near a strop to get a polished edge, but for most things the green DMT leaves a real nice edge that works great.
I use this on SAKs, slipjoints, my Benchmade Griptillian, Spydercos, a Becker 7, Ontario Spec-Plus's, Scandis, even Bark Rivers. Works pretty well on all of them, especially combined with a stropping. I do like a nice polished edge, but I have read that you can over strop and dull your edge, after all your hard work, and have managed to do just that several times...
I would like to make a pocket-sized DMT/leather strop combo one of these days, that would be just about perfect!