Im looking into a new knife, just because I want one. Been kind of interested in the Ambush series, which I understand are built by bark river. Curious if anyone knows who heat treats these blades? I never have heard of anyone doing a differential heat treat on 3v. Just wondering if its worth the effort, considering the toughness of 3v. Its kind of between this brand, or a gso 4.7. Anyone have any info. on these? Thanks.