What Palasr said.
I sensed that most of the listeners came into the room with a bias, and since the test was hardly blinded, let alone double-blinded, most people I talked to "heard" differences that were ascribable to their own perceptions of how the two designs SHOULD differ sonically, given the differences in their construction. I am not saying this is the case for Mike L, since I did not get to talk to him after the session. Anyway, he has a much better data base (extensive listening in his home environment) for making a judgement.
All I could tell was that I heard two different tonearm/cartridge/phono stage systems that sounded different from each other, not surprisingly and given my rather poor listening position.