How trustworhty is Used Cables?

I have dealt with them for years and find them knowledgable and fair. The other service they provide if you are having trouble making a decision is the lending library. Nothing like a in home/system demo to settle the question.

It's been a few years since I bought from them but they were very helpful when I was comparing speaker cables. I "believe" their matching database is based in large part on their sales data relative to the components in use by their customers at time of sale (e.g. what speaker cables have been sold to customers with Aerial 10T speakers).

Good luck.

They earn my highest praise. I have bought used and new cables over the years and been treated fairly and gotten great deals. The advice has been better.