There are a couple of lengthy threads here covering Cerious Technology cables. One is for their initial Graphene Extreme offering, the other for their best line, the Graphene Matrix.
I don't recall Elrod coming up in those threads, but they are long and I may have missed it. Both threads do discuss a number of other higher priced cables that people have compared them to.
It seems trying a cable you may be considering is the only real way to know for sure. I started using the Graphene Extreme cables with great results. When they launched the Matrix line, I jumped on the speaker cables as those seem to be where the most gains are felt.
Good luck with your search.