Graphene contact enhancer which one is best for the price and improvements


Is anyboody have compare these two "graphene contact enhancer". Perfect Path technology vs Mad Science Audio ? There is huge price difference between the two products.
audiosens
Vze2r8xe, did you proceed with that experiment?  What were your results?  It’s been over a year, did the Mad Scientist product degrade or improve with time?  I know,I don’t ask much...  :)

Anyone else have any further experiences to report?