As I stated privately to @JK47, I don't have interest in meeting Marv. Nor am I motived to go through any effort on the basis of a self-claimed passing of a test. If they want to be taken seriously, they should write a report and as @solderdude says, provide some evidence of authenticity. The next step after that would be for us to try to replicate the test which we can do. If we also hear a difference then we can investigate it ourselves. No reason to go and meet them without this. Our time and effort is not free.
FYI, another SBAF member claimed passing a blind test using the same comparator which was not believable. We need proof that there are no "tells" in that switcher. Long time ago Boston Audio Society set up a blind test only to have witnesses hear differences in relay click sound when it was selecting A instead of B for example. See: https://www.bostonaudiosociety.org/bas_speaker/abx_testing2.htm
"I expressed my desire to try the test, and Remington went to cue up the record again, but I requested to be allowed to undertake the test with no signal passing though the system. Before realizing the import of what he was saying, Vanderkooy interjected: "Ah! You're going to listen to the sound of the relays." Yes, there is indeed a slight audible difference between the acoustic "click" made when the "A" and "B" relays pull in. This is due to the unavoidable differences in the mounting positions of the relay on the A/B/X box chassis and, although slight, it can be heard if one listens for it. I replied that I was going to listen to the difference in background hiss, and the subsequent series of blind trials showed conclusively that the two signal paths could be reliably distinguished on this basis alone."
As @solderdude says, such blind tests are mostly good to educate oneself. Trying to provide it as proof requires a lot more work.
FYI, another SBAF member claimed passing a blind test using the same comparator which was not believable. We need proof that there are no "tells" in that switcher. Long time ago Boston Audio Society set up a blind test only to have witnesses hear differences in relay click sound when it was selecting A instead of B for example. See: https://www.bostonaudiosociety.org/bas_speaker/abx_testing2.htm
"I expressed my desire to try the test, and Remington went to cue up the record again, but I requested to be allowed to undertake the test with no signal passing though the system. Before realizing the import of what he was saying, Vanderkooy interjected: "Ah! You're going to listen to the sound of the relays." Yes, there is indeed a slight audible difference between the acoustic "click" made when the "A" and "B" relays pull in. This is due to the unavoidable differences in the mounting positions of the relay on the A/B/X box chassis and, although slight, it can be heard if one listens for it. I replied that I was going to listen to the difference in background hiss, and the subsequent series of blind trials showed conclusively that the two signal paths could be reliably distinguished on this basis alone."
As @solderdude says, such blind tests are mostly good to educate oneself. Trying to provide it as proof requires a lot more work.