Thanks jayctoy. I won't be getting the new pre for a couple of months or more so I'll have some time before needing the second pair of IC's. While patience isn't normally a virtue of mine, you're so right.....patience is the key to really evaluating changes to our systems and figuring what, if anything, needs changing. I think extra time is needed for the Graphene in the GE cable and the magnetic properties of the HF cables to settle in. I'm quite happy with the GE IC's but something tells me the CT-1's will be even better.