So, how can a skeptic be a person who has any experience with any product that is under discussion?It would appear that you need proof, which is reasonable, but perhaps measurable proof isn’t available or easy to obtain and the measurable proof available is that it definitely appears to be very audible, by peoples ears.
If TC works, for people, then compared to mega dollar component/speaker upgrades, this tweak is quite reasonable.
I always trust my ears because my ears (and my brain) have to live with the resulting music reproduction, but it is nice that others have spent some money and time, and given there opinions on the musical result.

