I know what you mean Lew. My stock plinthed Lenco beat my other table hands down. True, nothing like what you had, but still. I'm not 100% convinced that one has to mount the Lenco in a "giant direct coupled" plinth. After cleaning, lubing and bolting the top plate directly to the stock plinth, I used my GF's stethoscope to listen. It was dead quiet, except for one area on the left side of the plinth, closest to the motor. And then, it wasn't very noisey. No noise on the top plate anywhere. I do have some ideas about making some mods to the stock plinth to add more mass. I'm not going to cut on the top plate of this deck. It is literally a strong 8 or 9/10 AG rating, and it would just be wrong to do so. Who knows, years down the road, I may have the only non-cut Lenco...
:-)
Kinda like cutting on a '59 vette. Just ain't right...... Now, there's a vintage car I would love to be able to afford.