Dear Narkleptic: My God!!!, the SA-9800.
This was my first " high-end " audio device that unfortunately I sold it and everytime that I saw it with my friend/buyer i almost cry, believe me. I love your Pioneer SA-9800, congratulations!!!!!
First : " 103 "magic" has gone "..., IMHO and through my experiences there is no magic but a plain stock cartridge: no more.
You own the right phonolinepreamp for MM cartridges ( you can choose 100K on impedance that almost no one of today top top phono stages have not!!!!!., incredible. ) in first place and second MC ones.
Please, if you can, take a little of your time reading here about:
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1200430667
There are " humble " MM cartridges ( very low prices for it. ) that even and surpass MC cartridges in the 3K-10K price range with the right set-up. No the " venerable " 103 has almost nothing to offer against a good MM.
Your Pickering is not a good sample of the MM quality performance, well at least not that model because if you find a Pickering XSV-4000 or 5000 you will be on " heaven ".
Regards and enjoy the music,
Raul.