I am really digging the Cobalt Mule, but without any experience. Just based on the limited tech info and appearance of it. I don't have an S90V, but do have 2 M4's, 2 S35vn, 2 Damascus, 1 Chinese, & 2 Blue). But right now and I am looking forward to trying the Cobalt more then any other.
I'm going to put nice wood handles on some of these when it warms up.