I read a book on the Dead's gear where they went into a fair amount of detail on all the stuff they tried out through the years, and most all of it made sense on some level. Not all of it was practical on stage, but it came from them trying to solve problems they were running into, or getting something out of the instruments they wanted/needed.I will say that I don't think it was wasted on Phil; he would know how to get the most from it.
Yes, yes he doesDoes Phil dive deep into the noble and worthy American psyche bring to the surface the best in all of us?