Cheers my dear. Yes in the very start I had a 3/2/1 grind on taper. Usually forged pieces were just over 3mm. Whilst at the moment I have stuck with 3mm stock for mono knives. The damascus and san mai pieces have gone to a shade under 4mm over the year. This as a result of my own testing and customer requests for a firmer knife, or just to do my thing which has tended to be a thicker knife with more convex geometry but so very fine at the edge.