I have a Jerry Fisk fixed blade, S35VN, 0.095" spine, about 0.020" behind the edge, that is about as good as I've found.
Big fan of Jerry Fisk, met him at the Knifemaker's Guild Show in 1986, nice guy, easy to talk to. But, I could never afford one of his knives. I have a couple of his designs, tho, a Blackjack Magnum Camp Knife (that eventually morphed into the Becker BK-5, I also have one of those), and my EDC is a White River Sendero Classic.