"I also took some time again to compare the difference on a clean tone between A) setting master volume to 10 adjusting volume with the preset knob, and B) the normal way of using master volume at 2 or 3 to control volume. The 10 setting definitely gives more pronounced highs and lows, and just a fuller sound altogether." Well dang Pat, I thought I'd made my mind up on this issue, but what you're saying is making me want to revisit this once more. Which is a good thing. The MIII is so very tweakable, it seems a shame not to get the most of it's fine tuning. It's just that, so many sounds are so good, right out of the box, it's easy to just quickly "set it and forget it". Nice problem to have!