I recently discovered an old thread from 2009 on the US site going into more depth on the 'Black steels sound better' theory. I was initially searching for how different players eq their amps to achieve their tone, this thread popped up in the results and I have been enjoying reading it. Some interesting points and some well known steelers contributing, including someone from this forum you know well. Working my way through it, it's about 23 pages long.
If you're interested here's the link.
https://bb.steelguitarforum.com/viewtopic.php?t=165471&postdays=0&postorder=asc&highlight=tone+settings+msa+legend&start=0&sid=2b4c6093caa768fc78e76aecb0685bd9BTW I enjoyed listening to your vid, some great playing and I genuinely like your T shirt, I have one like it, it's one of my favourites.