Any one heard the Supra Zac Toslink I am looking to upgrade?

hi ! i'm an electronic tech specializing in audio/tv repair with over 30 years of experience. there are some areas in audio worthwhile spending money...optical cable is not one of those ... do yourself a favor ...do an experiment  . install a very cheap cable and do a blind test between cheap one and the one you have now. just play several pieces of music to any young  women under 30 years old. let them judge , they have better hearing then you and me .i bet you  they will say there is no difference . you can use this one. wish you lots of fun 

https://www.ebay.com/itm/Easyday-Premium-TOSLink-Fiber-Optical-Digital-Audio-Cable-5ft-10ft-16ft-S-PDIF/173104530690?hash=item284dd58502:m:mzYHryMiK8ceBGKXTSWssPA