Stainz - The liner lock on the Kalingas is .040" thick, and it is plenty tough enough - it's the same thickness as the Alpha liner.
As the 408 sheath goes, if you are unhappy with it you can feel free to send it back for replacement. We actually made a design change to it before most of the 408's shipped but I think a few got out with the old style sheath. The new style goes straight down from top to bottom on the side where the leather is folded. Can you post a pic of your sheath so I can tell which one you have?
As the 408 sheath goes, if you are unhappy with it you can feel free to send it back for replacement. We actually made a design change to it before most of the 408's shipped but I think a few got out with the old style sheath. The new style goes straight down from top to bottom on the side where the leather is folded. Can you post a pic of your sheath so I can tell which one you have?