Hi Red, Doc ...
I agree with both of you. Let me explain / clarify.
Regarding my comments about filament voltages, I can see where some might infer that I was claiming to have discovered a magic "tonearm dial" with this filament voltage adjustment - that this "dial" could make a Schröder and Triplanar sound identical to each other.
Differences between the two still exist and their essential characters were still evident.
I was however amazed at how startling was the convergence between the two arms, and this was my main point. I was fine tuning a single system while the differences between our collective audio systems are far greater than what I did that night.
From this perspective, you might well find someone to prefer a Triplanar in one system and a Schröder in another.
Perhaps this is why we have more trouble with our chosen hobby than the folks I reference in
this thread have in picking out technology that can save their lives.
Given how close the two arms are, one can make a powerful dollars and cents argument in favor of the Triplanar. Those who know me realize that I would not criticize this decision. Of course, we all define quality differently. I won't belabor this point, because we can all fill in the blanks - consistent with our priorities and aesthetics.
Finally, there's the human interface factor, and Doc uses a good metaphor in his firearm example. One or both tonearms will make "sense" to you. The one that makes "sense" is the best arm for you.
Cheers,
Thom @ Galibier