Today me and my colleague tried to hone the MAB. Unfortunately every time we were trying to finish it we could not get it keen and under magnification it showed nicely polished edge but it was not even anymore. It looked like we ripped semilunar bits out. We used Norton 1000/4000/8000 and later I swapped Norton 1000 to Chocera 1000 with the same result.
Anyone can put some light to this?