When you switched wires, there was more involved than just the dielectric. I agree that the Neotech copper wire sounds very good, better than TCSS, but this relates to the metal as well as dielectric. Incidentally, the Neotech copper wire is also available with Teflon.
Recently I have been using Neotech silver 20 g. with Teflon insulation. The silver sounds even better than the copper Neotech.
Recently I have been using Neotech silver 20 g. with Teflon insulation. The silver sounds even better than the copper Neotech.