Charles1dad,
Good question. Let me start by saying that I was able to borrow 4 AirSines from my friend for 2 weeks, which gave me a good bit of time to switch cords around and see what mixture of the AirSines plus my existing cords gave the best overall result. Based on that evaluation, the AirSines made the biggest difference with the Carys, so my initial purchase was for two AirSines for that purpose.
I found that I liked my Voodoo Vector Dragon with my modwright sony power supply about as well as the AirSine, and liked those two cords better than anything else I had at my disposal. I tried a half a dozen power cords going to the ModWright Sony CD player per se, and I couln't hear a shread of difference in any of them. So I left the existing PC in place for that piece, which was a VH Audio flavor 3. The Airsine was also very good (the best of all the cords) going to my Audio Magic power filter, which supplies power to the ModWright gear and the Line Stage.
That gave me an opportunity to try all the cords with the Coincident line stage. Three stood out as being good with the CSL. The AirSine, the Voodoo, and an old PS Audio Statement I had. Keeping in mind that the CSL was not (and is not) fully burned in, I preferred the PS Audio, AirSine, and Voodoo in that order. I thought the PS Audio gave better dynamics, but the AirSine allowed the CSL to exhibit a bit more complexity in the upper harmonics. I would want to reevaluate after I have 300 hours on the CSL before drawing any firm conclusions, and I would love to have access to a Coincident PC as well. But I can say that I heard clear differences with the different cords to the CSL.