Mine is the salt/rust proof version. I, too, am a little hesitant on using it, but trust it completely. It does open pretty easily, but I figure if I have it opening up, there is less chance of it opening (until I'm upside down, of course)
Let's hear from some other knife junkies like us for the perfect river knife. Been looking at a bear claw as well.
If they made the one below in a smaller knife, I'd buy in a heartbeat, but at 9+ inches, it's way too big for everyday carry.