Thanks Dougdeacon, that's helpful; I can certainly see why racking matters for turntables.
I'd be very interested to hear accounts of people doing serious ABs comparing a "merely competent" rack (say like my homebrew rod and block) with a SOTA rack, say like a Finite Elemente, which costs 10 times more.
What I was wondering about whether investment in racking yields cost commensurate improvements comparable to other elements in the chain, once the fairly modest "threshold" I suggest has been reached. My speculation is that for many of us, the money might be more noticeably placed elsewhere.
Best,
John