To the OP, just curious, which Grado are you using? Having heard the two types I would take a Grado any day, but that's just my personal preference.
Time for an update anyway.
To be clear, the cart that came with the table that I refurbished (Micro Seiki DD-33) is a Grado Gold of unknown age. I have had other Grado's but a lesser F3+ back in the day and more recently, a Green. I've never really had issues with them.
This particular Gold may have some wear, I just don't know.
My listening (with this rig) is near field using Fostex FE127e drivers in an aperiodic (Fonken) enclosure driven by a Pilot SA-232 amp, and a Grounded Grid pre-amp.
While the recent addition of the GG has tightened up things considerably, I still consider the overall characteristic of my system to be slightly laid back. My goal is to stir some pepper into the pot and see what happens. Not scientific at all, really.
I have a Shure M97xE, and now have a 2M Red on loan from Tiny Elvis.
When I was still using a NAD 7020 as both pre and phono stage into the Pilot, I swapped in the 2M Red on Saturday. I had some type of buzz going on, and repeated attempts to reseat the headshell onto the arm and the leads on the cartridge didn't help. So I moved to the Shure and had the same results.
Grrrr. Did I also mention that I don't have a lot of patience for the interminable futzing that this stuff requires?
Sunday evening saw the return of the cover to my GG pre from the powder coater (looks fab btw) so I put it and a Bellari VP129 into the mix. Viola, the buzz is gone and the Shure is putting forth sweet music!
I've been listening to the Shure since Sunday on a variety of music and I'm fairly pleased with it.
Tomorrow evening I plan to move to the 2M Red for a few days.
I will also move my Denon DL-160 into the mix once I'm able to characterize the Ortofon relative to the Shure. Then I'm going to make a decision and stick with it!
Thanks to all for your help and discussion so far, even though some of it is way over my head!