Proof of concept: https://www.tinkercad.com/things/hJeaLoCVVAq-stablizer Clips into the bottom of the ring (it's shown upside down for printing purposes). Takes seconds to install. The opening for the pivot is exact, which led to my discovering that a level azimuth at the shell means the ring is tilted slightly. I reversed the stabilizer but got the same tilt which means it's the arm, not the print. I filed the opening till I could obtain proper azimuth, backed out the azimuth weight till the stabilizer was barely touching the pivot, and put a record on. Can't say yet that tracking has improved but I think the bass is a little more fleshed out. Need more time for listening, and ultimately a better, more adjustable design.