Dylside, great tests and write-up. Your introduction matches my impression of why SOG is and has been changing up their lineup over the last couple of years. If you want to stay in business, you have to change with the times as consumers are a bit flighty and there are so many good knives available these days. The competition is signficant.
The grippiness of the handle material has bothered me a bit and you're right about the designs creating "hotspots". This is by no means limited to the Fusion line. My reference point is the Vulcan and Mini-Vulcan knives which I like a lot.
Your review makes me want to take my pre-fusion revolver hunter out and put it through its paces. But I probably won't. I trust the knife design enough to take it to the field when I know I need a knife and that is important. The leather sheath was always one of the strong points of the knife for me and one of the reasons I chose it over the other revolver design even though I don't see using the gut hook. I have no idea how I would re-sharpen the gut hook if it lost it's edge. Maybe you can make a suggestion in that department.