I am stunned by the continual generosity of this forum! I've got so many comments to sort out, and so many contributors to say "thank you!" to.
Well the Grado is now out of the running, due to a few comments about how picky they are about setup and thus not ideal for P-mount tables. I was not especially happy with the sound of the stock cartridge in any case.
I should have mentioned that I do own an AT311EP - is there a stylus upgrade for this? And I currently run a $18 AT3482P on another p-mount table I intend to sell (an SL-QD22) that sounds pretty darn good - is there a stylus upgrade for that?
I'm inclined to believe that the AT92 with a Shibata is my best choice for an AT cart. It would be great to have a 2nd cart for the hell of it, since they are so darn easy to swap out on a p-mount table, and I'd rather have something different from the AT. Could be the Digitrac 300 (some "meh" comments though...), could be a Shure, or maybe I'll have fun tracking down an older body that can take a nice SAS stylus.
Again, I'll need to sort through the comments again, sorry if I'm rambling. I want to respond to each suggestion in an intelligent and coherent manner. Might take a day or so for me to catch up. Again, THANK YOU!