Here's a fire starter: Analog is as good as SACD

I see. Thanks for the comments! I think my conclusions are
a) My system is not capable of resolving the difference in sound quality between analog to analog and analog to digital. I kind of doubt that.
b) My hearing has deteriorated to the point that I won’t hear anything less than a sea change in my equipment. This is as good as it gets. That may be true. I know my hearing only goes from about 40 Hz to 11 kHz with some dips around 8 kHz.When I compare a good SACD or DVD-A or even HDCD to a good LP switching back and forth, I can’t quite be sure that I hear anything but minor tonal differences. Yet I can hear the difference between ICs (which I believed was pure snake oil 2 years ago) and cartridges. Still, I do prefer LPs for some reason. I just can't isolate it.

Often silver-plated speaker cables diminish the true sound of music.
It would be interesting to try a different speaker cable thats not silver plated to see if it makes a difference.

"a) My system is not capable of resolving the difference in sound quality between analog to analog and analog to digital."

I think you should upgrade your tonearm and you will hear a significant improvement in your analog reproduction.

@lak
That’s where I;ll probably go next. I’m looking at Zu or Canare 4S11.
There are good deals on both on the Bay. May as well get the 2 to 4 bis.

@jperry
I think I’d have to spend a pile of cash to better the Sumiko/Jelco. Any cost effective suggestions? I like to roll headshells and have cartridges from 4.8 to 6.8 grams and compliance from 9 to 22.

I would look for a used SME V or variant. I think SME made a SME 345 especially for the Oracle TT. The 345 had detachable headshells. Another thought is a used Basis Vector, a Graham, etc. The Vector has a fixed headshell and the Graham has detachable arm wands.

Don't underestimate how much improvement this might give you.