This is a really thoughtful post.
Here is what I’m thinking. Also please note that as far as I know these are MY thoughts, not official SC policies or statements.
I think Solace somehow has a booster effect. So if someone listens to Qv2 with a Solace mask, the effect of the subliminal is likely to be more powerful.
The ear fatigue might be less. I have less intense headaches, and that resonant feeling in my head is minimal if I use a Solace mask.
I haven’t noticed if there is a delayed effect, but please note that people respond differently to subliminals. For you at this point, it may be 2 or 3 days. In a few months, you might notice the effects more immediately, as I’ve noticed the immediacy of the subliminal effects can wax and wane.
Here is a bold idea. How about listening to your Solace mask subliminal 2 times this week? Or maybe once this week? Then notice what happens.
What do you think?