.....though when you aren’t listening, I’d still advocate running signal to the Ygg even with your amp muted.....
I’ve taken that under serious advisement. In fact, I’ve posed the question to Schiit tech support. The manual does indicate to leave it on continuously, but falls short of stating it needs/wants signal continuously during break-in or any other period.
Running a signal to it continuously should be overkill IMO, irrespective of electric cost and any other equipment degradation. Modern day electronics just shouldn’t require "continually powered on" be the case.
In fact, my thinking in this regard is (or should be) "leave the Yggdrasil on continuously for the most euphoric sound you’ve ever heard in your life". Then, when powered off and subsequently called upon to play music, power said device on and exclaim "Wow, check out how great this sounds from a cold start. I’m almost in a state of euphoria. Wish I had left it on the past 24 hours."
Nevertheless, I respect and appreciate that advice and will post herein whatever Schiit support replies (assuming they do so).