A friend of mine says:
What he learned from guided-sharpening made him better at free-hand sharpening.
What kinds of things to learn from a guided set-up? I think several things, although I am not very experienced at free-handing:
(1) Visceral experience of how sharp a knife can get. Like, light-sabre-ing paper, and if you care, novelty edges such as hair whittling, and hanging-hair-test. Phil Wilson coined the term "novelty edges" because those extreme levels of sharpness go away quickly, and thus are not practical. But they are fun.
(2) You get some experience what using a stone feels like when it's cutting.
(3) You gain some experience (although limited) about how important angle control is.
(4) If you experiment, you learn how important different angles are for different cutting situations and different steels. You can get some idea of how much a few degrees makes (or doesn't make).
It's like training wheels for bicycles; sure you don't need them. But lots of people use training wheels when first learning to bicycle. Nothing wrong with this, I think.
The only issue is a personal preference on how much time and/or money to spend learning it all. As for myself, I suck (so far) at free-hand sharpening, so when I want to get to hair-whittling sharpness (for fun), I use a guided set-up, similar to WEPS. And if money is no object, I'm sure you could hire a machinist to make you a custom sharpening rig. There are a few machnists on these forums, and a couple of them have built either custom sharpening rigs, or done custom modifications to things like the WEPS and EP. But dang, that's kind of extreme.
Sincerely,
--Lagrangian
P.S. The machinist Beltman posted photos of the modifications he did to his WEPS set-up. Thanks to ChangeOfSeasons who pointed out this thread!
http://www.bladeforums.com/forums/s...nd-improved-Wicked-Edge?p=9169032#post9169032