A while back I spent a couple hundred bucks getting some upgrades from Danny for an old pair of AV123 ELT525s. It included some upgraded caps, no-rez, and tube connectors. Having never tried to upgrade or change my speakers in any way previously, I had no idea whether I'd hear a difference or not, and had an expectation that the changes would be too subtle for me to pick up, but I was curious and the cost was well within my budget to try something new in a hobby I enjoy.
After making the changes I fired them up and the improvement of clarity, instrument separation, and imaging was just completely apparent right off the bat. Is this just confirmation bias? I don't think so, but, even if it is, why should I care? I have an increased sense of enjoyment from the speakers when I listen to them. Also, I'm perfectly capable of reading the theory, science, testing, other's listening impressions and making my own decision about what I want to spend money on as is everyone else.
I'm not sure what your objective is here, jtwrace. You've made it clear in the ASR thread what you think of Danny and his work, so why come here to his house and crap on the floor?