Mike Stewart uses many different steels for his knives, as long as they will do the job. Bark River heat treatment is also very good. If this happened doing fuzz sticks Mike would be interested to hear about it. As I said, this can happen sometimes with thin convex edges. If you are not comfortable re-profiling the edge yourself to be a little thicker you can always send it to Mike with an explanation and he will take care of it. Very good outfit, Bark River.