I've been Googling and chatting with Drew (who was reading the THD manual) and the Hot Plate that I have pretty much says "Fuck you, don't use me with a SS amp!".
I was thinking that I could use the THD in Load mode and run the line out into my DAW to profile my S160, but there's a lot of expensive shit there (my MOTU, my Axe-Fx and the THD itself) that I don't want to fubar for the sake of a comical preset.
I have plenty of extra cabs, so I can put a load on the head if it needs it, but I need a line out that'll work with an SS head. I think (not even 50% sure) that the effects loop send may cook my interface, or at the very least be a bit too noisy.
What are my options?
EDIT: Nevermind. I'd trust the THD manual first before me.
The FX Loop Send should do the trick though. You don't need to run the head with a load since SS amps don't need a load like tube amps do. If it's too hot, run it into your mixer and turn it down; you're unlikely to blow anything.