What I haven't seen mentioned in this thread is that reputedly the Esee knives are differentially heat treated , so the edge is harder and the rest of the knife softer , or tougher. This would make sense , as I understand Rowen used to supply Tops knives with some production , and they have a similar differential heat treat.
This is actually the first time I've heard that ESEE might have a differential ht. I've also not recalled ever hearing that tops offers any knives with a differential ht either (which may not mean much, I don't pay much attention to tops knives).
Is there any data backing this up, or is this just something that people have speculated based on the fact that their heat test is pretty good?