I have to state right now before the Splawnites show up, I am not a fan of the voicing with any of Scott's amps so my 2 cents may not be the best for you
Going from memory I believe the QR was a tad more forgiving but to be honest we had boosts on everything that night
Had two. Had a custom 40 and 30. Liked the 40 better. Both bilt very very well and Doug was great to deal with. If I ever get back into have a stable of amps a custom 80 or Janelle 80/100 will definately be one of them. Awesome amps!
Had an HG100. Like others who commented here, the build was phenomenal, and it was loud as hell. Unfortunately, you can't turn it down with an attenuator. I've heard that nullifies the warranty.