Our experiences match those of Rushton, Dan_Ed and James1969.
Our LP's reveal greater dynamics, extended HF's with less distortion and a markedly lower sound floor (more low level musical detail, ambient space information, etc.) This has been consistent across hundreds of LP's.
CD/SACD/DVD-A sound is also improved.
The gray scale and color rendering on DVD's are measurably more accurate, so the PQ on most discs is visibly improved. (Demagging can make it easier to see digital "airbrushing" surrounding some CGI images. As with any resolution enhancement, flaws in poorly constructed source material become more apparent even as the quality of good source material improves.)
IME demagging does not involve or affect static electricity at all. The Zerodust is still needed for that.
The improvements with the Walker Talisman are subtle, as Rushton reported, but always audible - although you do need to demag before each play. The improvement with stronger, AC-powered demagnifiers is notably greater and repeat treatments seem unnecessary to date (~6 months), much as claimed by Furutech.
If an LP sounds "bright" after demagging, as SirSpeedy heard in some cases, I suggest there's something out of whack in the playback system. Demagging does not add anything to an LP that would cause brightness. All it does is reduce stray magnetic fields that can interfere with the native magnetic fields in the cartridge. Distorting those fields alters the behavior of the cartridge away from what the designer intended.
