Hmmm. Seems to be a kind of concensus going on here. I use the 19 degree slot on my Gatco for the exact same reasons as Tommi. I find it interesting what Gatco recommends:
"Angle 25 deg: Wider bevel: more durable edge. Perfect for pocket, folding, hunting, fixed-blade and some serrated blades."
25 is a bit steep for me.
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Hoodoo
I get some pleasure from finding a relentlessly peaceful use for a combative looking knife.
JKM