Just wondering about the mixed opinions on the thueringan / thuringan / MST / Mueller and what-else-they-are-called hones ?

What about them is not to like???

I have searched the forums but I canīt really find any discussion on them?

Personally I like them a lot more than most artificial japanese water hones in grit sizes between 6.000-8.000 and I use the MST-"thuringan" after the belgian coticule.

What other hones are comparable, prefered or even better than the Mueller MST hones in the U.S.A. or the rest of the world?