Over time the bonding can loosen and the damping rubber ring will come lose, without this material the platter is better suited to announce the second coming.
Thanks for the tip, totem395. Upon inspection, the adhesive securing some parts of my rubber ring had indeed dried out. I couldn't tell just by looking; I had to peel back the outer rim of the rubber (the adhesive is applied in square blocks roughly midway inbetween).
Readers of this thread will know that my victor experienced a resurrection, but now that my ring is secured, I have perhaps put in abeyance the second coming?