Sorry to interrupt, but I was at work and thought I might have left the GAS on...
I think "tighter" HBOD is a good description. I also think higher gain is a good one too. I did end up selling my HBOD without really looking back after picking up the Model G. If Bjorn and Donner are okay with it and everyone promises not to joke my playing (my gear is much better than I am
), I'll try and sneak in a little recording this weekend of the Model G at volume with a few different gain settings.
Oh... I also had the MHt, which was a COOL pedal, but very different from the Model G. More mids in the MHt and all around just a different sounding gain - wish I could do better than that description, but that's really it.