Flat records...
Am I alone (and anal) in checking every album I play with a bubble level where the stylus passes?
Although the SP10, arm and cart are level (azimuth corrected) most albums are not flat as they pass under the stylus, usually running up a few degrees to outer or inner depending on pressing. To correct this I use a small circular felt spacer that fits around the spindle and different arm pucks of differing weights to level things out. This works in 99% of cases.
Weirdly older, thinner vinyl is the least variable, warped occasionally but typically perfectly flat.
In perpetual pursuit.
Technics SP10 mk2
Jan Allaerts MC 1 Boron mk1 cart
Miyajima Shilabe cart
Hashimoto HM-X SUT
Siggwan (gimballed not unipivot) Cocobola 12"
Aurorasound Vida LCR Phonostage
The Truth linestage
Dave Slagle Autoformer Volume Controller
Cary 805c SET amps
Audio Note ANe-SPX speakers
Townshend Isolda speaker cables
Cardas Golden Presence interconnects