If you're getting a replacement, not a repair, can you get some measurements of the edge thickness and approximate edge angle? I have 2 choppers that I've reground, both with 12"+ blades. The new edges go as low as 0.015" behind the edge, at the top of the sharpened bevel, with edge angles 17-20 degrees per side, and primary edge bevels of ~4-5 degrees per side. Steel is 1055 plain carbon steel, hardness is unknown. Both will cut through at least a 4x4 and still shave my arm. I've limbed, bucked, and split 4" diameter limbs with them for an afternoon and didn't see the kind of damage you did. After seeing what $15 blades 3/32" thick will do with a good regrind, I don't think I'd be willing to try a $200 that has noted chipping issues 4-5mm deep, even if it is considerably thinner than mine.