Allow me to sound like a broken recording with the heart-wrenching sound of a horse beaten till dead.
Sharpening can be defined as the act of (micro)sculpting a keen edge on a steel object.
If we see a well sculpted statue, how many of us are going to attribute the quality of the work to the quality of the artist's chisels?
I know that upon sharpening a razor, I always make a conscious effort to do the best I can. That requires consideration, sometimes tinkering, occasionally a layer of tape t, and always the application of practiced skills. No exact recipes exist, no "add 20 laps of this with 2 drops of that and 30 laps at pressure X and you'll end up with a great edge". How influenced by physics it may be, sharpening remains a craft. An intelligent human effort.
The tools we choose, have only a limited influence on our eventual result. If I sharpen with a Coticule, there are at least a dozen different finishing tactics that I use to get what I want. They don't differ much, but enough to affect the outcome. Also other knowledge and experiences are brought into play: the width of the bevel, things I know about the behavior of the steel of specific brands and models, even on occasion knowing that the person I'm honing for requires a soft edge before anything else. Let me sharpen a razor 10 times with the same tools, and the 3 last edges will be better than the 3 first. Maybe not by much, but ennough to differ.
The bottom line is, that as long as you use tools that are remotely fit for the job, you can get it right. And the more you'll work with a particular tool the more you'll be able to control what it does, the better it will start fitting your hand. I feel sorry for those who think their skills are perfect and whatever left to be desired must be a shortcoming of the tool. Learning never stops.
We can weigh a tool in our hands, and we can describe how it feels, what it does well, what it does reasonably well and what it doesn't do well at all. But even that is restricted to our hands, our cerebrum, our evaluation. To prove the point, here's a Youtube link of a guy who's hands can do something with hammers that mine can't.
http://www.youtube.com/watch?v=sJmZvifrO9Y
If we really want to honor the Thüringer hones, let's start a thread about the finer points of its use. We have such a thread about the Japanese hones and it became a wonderful resource of useful information. It would have been worthless, had it lost itself in a dogmatic adherence to tool absolutism and "differences" with other equally "absolute" hones.
This also counts for synthetic hones. When used well, they are as capable as natural hones to do a great job. My Chosera 10K provides a significantly different, softer finish when it is used in a slightly glazed state. And it really loves to be used at higher bevel angles. 3 layers of tape on the spine and 3 light licks on the Chosera and you have a completely different result than before. Who knows what a waxed Norton 8K can do? 1000 posts of Internet noise about how hone X compares to hone Y. Utter gear fetishism, but little information on how the artisan craft of honing can be mastered. Or should I say meistered?
Let us not fall into hat pit.
Bart.