"Lyra Helikon and Grado Statement Series Reference 1 are seriously in the running. Both of those are good compliance matches for my arm, as is the Clearaudio Virtuoso Wood (its a moving magnet) that I am curious about."
Hi Jerome
Lyra Helikon is almost the total opposite of Koetsu, and you'll be in the same ball park as you are now, with a little more fluidity than Ortofon.
Grados are just not up there, IMHO, period. Any Benz Glider will beat them. Even though Salvatore thinks that wooden Grados sound like "an improved Koetsu". I beg to differ. BTW, every Grado I had did not track well. Being here in Brooklyn, I even went to the factory to discuss that, and was given the answer that some records are just "severely over-modulated". Perhaps here in the circles there are some fixes for that.
Clearaudio Virtuoso Wood is one of the biggest jokes and scams on the market, being nothing more than a re-badged Audio Tecnika AT - don't remember what number - with a different cantilever and stylus. There is a big thread on it on Asylum. It sounds to me like you are moving in the wrong direction. I guess Koetsu has lost it's pull on you

Cheers