I too am searching for a loom.
I have learned from experience that there is a huge number of counterfeit cables on the used market. Steer clear unless the seller has positive proof the cables are legit. Look for receipts and contact the manufacturer with sale photos to help confirm the cables before you commit.
Great advice above about in-home auditioning. It's the only way to do this right. The cable company does this but I do not believe you get your money back. Money spent goes into your account for when you're ready to buy. It's not a bad thing if you're serious because you will likely find cables that work for you. I have been in touch with someone there and so far am impressed with their knowledge of what I own and they have a large history of what has worked best for multiple customers and brands, etc. I am on the fence going forward for three reasons: 1. I am not ready to spend a ton of money on cables. I am trying to get something that works for me at a bargain. 2. My system is new and not what you see on my profile. I went a completely different route. Your system needs to be settled before auditioning cables because every new component has the ability to change the sound. I only need a streamer, which is imminent. 3. There are lines they don't carry (that I've seen) and those lines have their own try before you buy offers.
@artemus_5 Thank you for the heads-up regarding audio envy. I am going to reach out to them today.
Regarding Cardas - My local dealer was supposed to get them a while ago but has yet to receive product. Does anyone know if they are backed-up? Several of us have been waiting months for them to arrive...