I have one. It made a huge difference. Cupped albums are now dead flat. The sonic differences are noticeable. Worth every penny.
Wayne's Audio Turntable Periphery Stabilizing Outer Ring
Anyone have any reason to NOT give this a try (besides the price)? Or anyone recommend an alternative? I have great weights/clamps/mats but definitely own a few thousand less-than-absolutely-flat records, and feel like it’s a shame to be missing contact.