I can't help you with the sheath pocket because I have a Companion and it has a different sheath. But I can help with the angle and rust. I saw the same thing in the instructions about the angle so I called Camilius. They told me to use any angle I like. I took the blade on a car camping weekend with the wife and found an eight-inch log. I chopped it in two, no effect on the blade. I keep using it and can't seem to dull it. I don't know if that is the steel, the angle, or both. I also took the knife on an eight-day whitewater trip. It sat in my "wet bag" and maybe took it our three times (it seems that my life jacket knife could handle most of my cutting chores). When I got home there was a little surface rust on the edge, but I hit it with the stone and all is well. The coating took care of the rest of the knife. I now use a Tuff Cloth and don't anticipate anymore problems (not that that was a problem to begin with).
-Biscuits