I personally find freehand more rewarding. It forms a bond between you and the knife as you learn all of its nuances. Plus freehand sharpening always puts a slight convex on the edge, because no matter how good you are, you cant keep your angles completely flat without a guide, which imo is an ADVANTAGE of freehand.
The trick with freehand Ive found is to go slightly under the angle you want, as during the stoke you will vary a little bit. Its better to go between too low and right on, than right on and too high.
You only need 2 stones when starting out, (some would argue that's all you ever need, murray carter for one) . And what Ive found is that after you get your edge on a lower stone with back and forth grinding, switch to edge trailing strokes to hone and polish the edge, and draw it out into a perfect V. I have been using Murray carters methodology for years with extraordinary results!! I peronally use shapton pro stones, but King stones are good too.
Murray Carter argues that once you have your edge, going edge forward can actually have an adverse effect on sharpness. When going edge leading your edge can run into the little imperfections in the stone, causing a slight dulling effect of the VERY TIP of the bevel... whereas when you are doing edge trailing, the edge just glides right over the imperfections, drawing it out to an ever more perfect V. It also preserves the micro serrations better, so that no matter how fine you go, the micro serrations just get smaller and smaller, but never really disappear, right up to the 30K shapton (unless you use a leather strop of something of that nature, which actually polishes the edge, making it better for pushcutting ie. shaving). Now a polihed edge, and a polished bevel are two very different things. You can have a mirror polished bevel, but still have micro serrations on the edge.
Free hand takes longer to learn, but once you master it, you can apply the skill to any medium. WEPS will get you sharper edges right away, but freehand will teach you more about those edges. IMHO of course... the guided systms can teach you a lot too, but I find you dont feel the abrasion happening. Feeling it is important IMO as it helps you get a better idea of how hard you need to push, and how far you've progressed on a given grit. Every steel, and every hardness feels differently as well.
I think JDavis said on youtube, that no steel is more difficult to sharpen, the techniques are all the same. Its just some steels take LONGER to sharpen than others. I guess it could be more difficult because you have to maintain a consistent angle for a longer period of time, but I get his point and agree completely.
SO yeah, I say buy some stones, get murray carters sharpening DVD's (amazing stuff in there btw), and give it a go. Im sooo glad I did when I did, because now I can put on an edge freehand that can whittle freehanging hair. but because of the high grit micro serrations can slice like a light saber.
Cheers!

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