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Cascadesphil - my working hypothesis is that dry air and moist air couple and resolve the various forces differently - not a theory, but a hunch developed over the past year of experimentation."
Tom - thanks. I sort of figured it could be something like that. After one session, where I had some issues, I actually grabbed my allen wrench to make sure the drivers were tight and they were. For a bit it drove me a little crazy (and some would say that's not a far drive) and I went back to the video on how the 3.7s were made and was thinking about looking inside. Then when I played the same stuff where I didn't notice a problem.
Back in early March of 2020, I had my AC units tuned up (as I usually do annually and I have two zones, one for a large bonus room upstairs and I go upstairs about once or so a week to move dust around and flush the toilet). Bacteria gets attached to the area around the coils and they get cleaned with either wipes or Lysol. I decided to put in the Patriot UV light (
https://www.patriotiaq.com/#!/Patriot_UV) on the main zone (and my bedroom and the living area I use is on the main zone) at the time of the tune up.
Since then, I began to notice (don't know if it is coincidence) a couple of things. I've been sleeping a drop better. Also, I began to notice (at least a bit more) those anomalies with the 3.7s. I probably noticed them before that but to me it seemed less that I chalked it up to perhaps my ears were dirty (I go to the ENT on average about every 10 months as my ear canals build up wax) at the time.
