Have now applied Madscientistadio.com’s Graphene Contact Enhancer with great results. I started with Caig Deoxit Gold, moved on to Acoustic Revive ECI-50 spray and now applied the above to the same contacts. In each step there was a clear improvement: it manifests itself in a perceived pickup of music‘s rhythm and pace. There is perception of better dynamics and clarity along with a reduction of graininess and sibilance, everything appears more immediate and less forced. The Madscientist Audio material needs to be applied in small quantities: when I put too much on the RJ45 connector to the router, the signal stopped until I removed most of it. Compared to the Acoustic Revive, the effect was greatest when treating fuses and mains leads. Highly recommended.