I've had my Studietto since new (1990), with an SME V arm and (currently) a Trasnsfiguration Temper W cart. Mine has the JVC quartz-controlled motor like yours and Goldmund cone feet (you can still get the threaded ones from Goldmund, which replace the plastic ones.) But there are two big improvements you can make to that table (and they're the reason I kept mine!):
1. Re-lube the spindle bearing with the van den Hul Spindle Oil. It's laced with zirconium oxide powder which acts as micro ball bearings and really silences any bearing noise.
2. Get rid of the springs, flip the big knurled height adjusters upside-down and install sorbothane pucks. I used Panda Paws because they come in different squishynesses (is that a word!?) just like the springs. Lots of Studietto owners have done this. Besides making the TT easier to use, it drastically improves bass response and eliminates all those nasty resonances from the motorboard. It might even enable that ornery T5 arm to work decently ;-)
1. Re-lube the spindle bearing with the van den Hul Spindle Oil. It's laced with zirconium oxide powder which acts as micro ball bearings and really silences any bearing noise.
2. Get rid of the springs, flip the big knurled height adjusters upside-down and install sorbothane pucks. I used Panda Paws because they come in different squishynesses (is that a word!?) just like the springs. Lots of Studietto owners have done this. Besides making the TT easier to use, it drastically improves bass response and eliminates all those nasty resonances from the motorboard. It might even enable that ornery T5 arm to work decently ;-)