I won't be using it in the loop. I'll be going into the clean channel. I've found this preferable with nearly all high gain pedals and the HRD.I've looked at that one from his lineup myself, and the only real reason I haven't gone out for one more gain stage in the metal build is tube compression + tweed sometimes can't be recovered with that much comping and reamping.
With a HRD, I would consider how much amp push/amp gain I'm willing to lose to the new pedal's grind and or volume bump. Another reason is 4 drives often won't jive with volume stacking because they all tend to have way too much output for me when I want to use them in chain with some other stuff. True tweed is p similiar to some early Marshall builds, even if it's not a Bassman, and it's mostly the output and cabs that make it harder to notice. One other thing I've come across, is the more like you stack with like, say MIAB, Tweed Pre's, Baxandall/English, the more the pots only swish mud at any point in the path. I get around this by putting brighter stuff first, then the darker Tweeds/English last
I bet this pedal could work but IDK if I will like it in the loop, most likely turned down alot so eh. Still circling