For sure I will be glued to this RR!
Frankly I'm lost on the tire thing, though. I had to watch the video with no sound, so maybe I missed a voice over narrative. Apologies if so.
Why those oddball looking tires to begin with, and were the knobbly treads vulcanised on top of the existing or something?
They look much wider in the "after" pictures than the original width could air out to, even with being pinched in from storage/shipping.