That's a bit of a surprise- your response on AudioAsylum lead me to believe otherwise. I can point you to a number of other examples should you need more proof.I think we are missing each other on a few of these things. I have no doubt that assuming enough inductance and a reasonably competent transformer design that for a given cartridge an acceptable network can be found to give flat response. My contention is those networks put in place to account for a mismatch also do some sincere damage to the sound quality.
We agree that SUT's can never be "universal plug and play" and while you say issues can be fixed by loading, I contend while that is technically true, this imparts a rather large sonic compromise.
While on this topic I will add that in a perfect world I would install the "ideally matched" SUT into the front end of the phono stage but then what happens when you want to compare a Lyra Atlas to a Van Den Hul Colibri? In my world you would need a new SUT and in Ralph's world you would need to hope that there is enough inductance to support the VDH and then adjust the load accordingly. In either case with an internal SUT this becomes a difficult task which is why i advocate for using external devices as the best option for this situation.