FWIW, I recently got the chance to test 2 Thuringian-type hones on loan from my barber. Sharpness was pretty close to what I can get out of a coticule (not much difference, really), but the coticule edge was a bit smoother. (Escher was used w/ water only; not sure when to use slurry on these.) Not a great deal, but I felt the difference.
I used the Escher after coming off the Norton & then retested w/ a coticule edge doing the same thing to rule out inconsistencies. I know some guys swear by them, but I sort of wondered what the fuss was about...
I posted this "heresy" on another shaving forum--apparently everybody "knows" that coticules are not as sharp as Eschers. Hasn't been my experience. OT, but I think the main problem people have w/ this "coticule dullness" is they don't use enough strokes for it to finish the job! There, I said it.
I'd also stay away from TimberTools. No idea what those things really are.