My take is simple. The cartridge needs a solid sink to take excess vibrations that are generated in the cartridge while playing the record.
I tried a couple of isolation devices, and found they smeared the frequency balance and the soundstage, messed with the bass, and generally degraded the sound.
I tried a couple of isolation devices, and found they smeared the frequency balance and the soundstage, messed with the bass, and generally degraded the sound.