Well, this very special case of counterproductive refinement has to do with its relatively low carbon content, 0.45-0.5%. Only in Germany that's considered as 'high carbon'.
I would sharpen the Tramontinas on a stone of J400, or corresponding sandpaper, and deburr and strop very, very lightly on a 800, No polishing.
I don't know what Mundial uses now. The last Mundials I've sharpened were from some time ago. To me the steel was equivalent to the German and I treated it correspondingly.
These are nearly 30 years old, so I'll assume they are similar. Thank you.
Originally Posted by Benuser