This is great information as I have tried this as well and can hear a difference. My question is, have you shared this with Rivian by chance, and if so - what was their reaction to this information?
My opinion is this, the major players have to bring a better product to market. Mercedes is one of the automakers that surprised me with all of the issues they had before and during launch. Simply put, if it's not ready at launch, don't release it.
I have an appointment Monday to have my trim piece replaced on the driver side of my R1S. I had some adhesive tape I used for sound reduction to hold in place. It should be a simple repair.
Glad you are all ok. I have blown out two of the P-Zero 22's, and there was no warranty assistance. Spent on 1K in new tires and have since switched to Michelin's and LOVE THEM!! Cost, ride, etc!!!