Bristol_Jonesey
I also find that using the Sat Knob adds just a little something but it can get dirty pretty quickly if you overdo it. Subtlety is the key here, as it is with any Distortion/Overdrive/Saturation plugin
My take is that in moderation it adds weight, but any more than that and it loses weight and sounds thin. The tube module is the same. Once it starts sounding thin then you have to back off the drive knob.