Sirspeedy:
I finally took the plunge and purchased the Phantom. The Phantom works well with my 8 gram Helikon (I recall you have a 7 gram cartridge and had some compatibility concerns).
The Phantom was installed over the weekend. It has less than 10 hours of run-in time. However, preliminary indications are promising to say the least, since I have not yet optimized the azimuth, VTA, anti skating, damping fluid, etc. All musical parameters stepped up a notch with the Phantom. I am particularly impressed with the speed of transients and the clarity of instruments at the rear of the sound stage. So far, I would characterize the sound as detailed and coherent, bold yet suave.
Incidentally, I am using the Phantom on an Oracle Delphi MKV SE with a Helikon cartridge.