I tend to echo Dalek Supreme on this.
many years ago, I was taught by Jimmy Hughes (who himself was taught by Julian vereker) how to set up an LP12. Tighten everything "BUT" make sure the audio cable is properly clamped and not pinched as it passes through the P clip (many are pinched badly and it makes a difference).
The thing is, I heard a Spacedeck and it totally trounced the LP12. It was more "musical," more "rhythmic," far more enjoyable and "involving" to listen to and, to answer the "true to life/mastering/master-tape" argument, closer to the copy master tapes s I had. The Mentor/Decca Microscanner was almost identical and records sounded Sooooo good with this deck and into my ARC SP14 (I'd say the Croft SMA IV PP had as good a phono stage, despite the lack of "Wonder Caps").....
Many top end turntable systems used to sound lazy, as if all the life has been refined out of the music. The Decca and Mentor have precision, but there's a raw-ness I loved that brought LP's to life - and that's before I played uncompressed 12" singles where all the limiting was often switched off.......
So, to conclude, I'd suggest that a "closer to the original acetate/master tape" view is the correct one, as so much more music comes through, but I do object to the bass up-treble down balance of so many cartridges. Set your system up around this incorrect balance and there's no way CD in any shape or form will work. My system sounds grand on CD and it's the vinyl that currently sounds too safe (the Dual is good with ATC actives, big and small, but the Crown/BC2 combo needs a bit more "drama" from my LP spinner).
Forget most LP12's. Pre-Cirkus ones NEED to be super-tight, but later ones need to be firmly tight but no more as Dalek Supreme said above. Whatever, things have moved on and the LP12 is now trading on its reputation and the stupid retail prices these days are just too greedy IMO and indicate desperation as the retail prices keep climbing and demand falls for new ones (I very recently heard of yet another UK firm giving up majority ownership to a creditor (?) in the far east - such a shame).
I can't go on and I can't go back, I don't feel so matter of fact,
I tried and tried to make good sense, What's the good to try it all again?