Mike:
There are many decent guided sharpening systems out there, the WEPS, one of which jumps to mind.(
http://www.wickededgeusa.com/ ).
I used a Lansky & Gatco system for many years, with very good results, until I could convince myself to splurge the bucks on an EP - I never looked back!
The EP comes in two models, the smaller Apex, and the Pro model.
The difference between the two is size, functionality, precision & build quality.
My preference for the EP stems from the consistent, exact, crisp, clearly defined precision edge it delivers with ease.
I am more into high end Japanese knives than other knives - the EP excels in sharpening them - any steel you throw at it.
As for progression......well that is an entirely different ball game, and is hugely individualistic dependent upon how anal you are about your edge.
I am rather far off the "anal" scale and am deemed by others in need of serious mental guidance here.
I lap my stones after each use & check them with a dial caliper to ensure that they are flat and true. (uniform thickness throughout)
I use an angle cube for precise edge contact.
I inspect my progression with an electron microscope.
Firstly let me say that the stock stones that come with the EP do a great job, but wow, the aftermarket Chosera & Shaptons are simply unbelievable (
http://www.jendeindustries.com/mm5/merchant.mvc?Screen=SHAP&Store_Code=JENDE )
I have the full Chosera grit range, + additional stones like 8k Snow White, 15k & 30k Shaptons in 1x6 inch flavor.
For low end grinding I use the 2x6 DMT EP mounted plates.
Then I have various stropping compound s up to 0.1 micron Poly diamond spray - freehand and/or EP mounted balsa/leather.
Back to progression....
I normally grind a relief (back bevel) on all my kitchen knives, with a micro cutting bevel of typical 4 to 5 degrees more obtuse to add strength & durability.
My typical Gyuto would look like this: 9/13, meaning 9 degrees back bevel with 13 degrees micro bevel cutting edge.
This makes touching up the edge on a strop a breeze.
For the relief bevel, I use the full Chosera stone progression up to 10k, then finish with the 15K & 30k Shaptons for that ultra mirror finish.
The cutting edge grit is determined by the use/application of the particular knife.
My general Gyuto's are finished at a nice toothy 2k & my protein slicers at 30k + ......
Then I keep one or two knives with bragging rights, off the chart super duper edges, which can split hair etc...
Yeah I know....can someone please point me in the right direction for some serious rehab....
Hope this helps - shout if you need more info...
Here are some pics....
