I have both, plus a Cotton Dock. I guess you can say that I like these products. I first purchased the Silk, but later on I realized that I needed something a little more durable. Not to say that the silk or cotton is not durable, but I needed something that would not break during a lifestyle that puts constant on-the-go flexing and stress on my cable. So I was thinking stranded copper. The problem with that is stranded cable does not sound good to me. I should rephrase that: The problem with that is, before the Cyro Dock, I've never heard a stranded cable that sounded good. I wanted my cake and eat it too. Well, when I contacted Ken, that's just what he gave me, imagine that. I love this hobby. He told me about the Cyro he was testing and offered it to me at a very good price, as it was still in beta. I've had it over a month now, way over 100 hours. Let me tell you, I am not careful at all with this cable. It still looks and sounds brand new. It does sound very much like the Compact Silk Dock. Real real good. Wide open sounstage, more detail, more air, good texture, and richer harmonics. I never would have believed that an iPod could sound this good. I liked them so much that I had to purchase a cotton, mostly out of curiosity. Oh, I did I mention that I also purchased a 24 inch Cotton to RCA Dock? Yep, I love and am in awe of these cables. I am not worthy. Seriously, Ken has created the kind of products that stirs one's interest. Just look at the amount of posts here lately. The cotton has the more open soundstage of the three types I have, with the Silk and Cyro comming in a very, very close second and third respectivly. That's the only real sonic difference I hear between them. There are others but I'm hard pressed to hear them as they are so tiny and, for the most part, forget all about them. I'm just enjoying the music. The soundstage differences are also very tiny. On a side note, I use them with a 5G iPod and a Xin Supermini III. With my old cable and Pocketdock, nobody noticed. With one of Ken's cables people will notice. Twice, perfect strangers have come up to me and asked what that cable connected to the iPod is. They don't notice the amp. Once with the Silk and the other time with the Cyro. So then I would wind up in a conversation about the whole thing, which seemed to fascinate them and was fun for me. You can't go wrong with any of the three that I've mentioned.