The FWI had much less punch than the bone. For flatpicking, bone was a great improvement. FWI doesn't "seem" soft, but it has a softer sound than bone. I have tried Corian for a nut. It seemed to sound fine, but I don't notice as big a change with the nut. I don't think I have tried a Corian saddle. The Micarta does seem soft, but oddly enough, it doesn't wear quickly. I can't really A/B the sound as I haven't changed it (it's a glue in.. otherwise I would have tried bone already). I suspect it is less punchy and warmer than bone. I like that particular guitar with the Micarta, so I am reluctant to change it out.
I stayed up all night to see where the sun went. Then it dawned on me.