Just an observation here, but????????

If you have springy hardwood floors, you need a suspension, like a good Sota. I don't think high mass without suspension corrects that problem, but might have other benefits.

I have eliminated the need for a suspension by recording reel to reel in the basement on a concrete floor; you could jump up and down next to the turntable with no effect; I have a lightweight Rega.

I think high mass costs more as opposed to a Rega; while delivering the same comparable sound. Of course one would have to audition the two in order to discern the benefits of high mass, but high mass, or low mass without suspension will not protect from foot falls.

@orpheus10 very clever to record onto reel! A good tape deck should probably be my next purchase. I’m also curious as to whether recording CDs onto reel tape can make them listenable, lol.

First off, you want 2 track reel as opposed to 1/4 track; it delivers much more. When you record vinyl or CD's to 2 track, the playback is always better.

Tape is such a problem, that I wouldn't recommend getting into reel, but if you can overcome that obstacle, you can experience the pinnacle of high end audio.

@orpheus10 which Teac r2r machines would be capable of 2 track (half track?) operation?

In vintage turntables, I prefer spring suspension augmented by the turntable being placed on rubber isolation feet. My Technics SL-1700mk2, which benefits from a non-resonant substructure which is spring-suspended, has its feet upgraded to the rubber-isolation feet from the brutish SL-1200mk2, which has no suspension whatsoever. The result is great. For my application anyways....