I have to agree with you Nick. The NAM Captures I was using - at their specific static capture settings - did sound every bit as good a L6 / Fractal Models - but again I hit the wall of tweaking which is where high-end component modeling *still* leaves NAM and Tonex etc.... in its dust.
Hence why I'm sticking with the FM3 with the HX Stomp as a great sounding unit too as you never know what Fractal and L6 are going to release :)