I was a speaker / interconnect cable denier until I purchased a good set and listened. I was an power cable denier until I purchased a good set and listened. I was a isolation denier until I started experimenting with those cheap Nobsound springs. Fuses are waiting for me to get home and listen. I will absolutely purchase a set of the Tuning Discs based on what I have already experienced.
If you haven't tried a product, why would we ever care what you think about it? I thought this place was to share knowledge about the gear and music we've listened to in our systems. Am I wrong?