Not sure if the OP still uses Guarneri's, but IMHO one of the very best cables for these speakers is Nordost. The cables are lightning fast and the speakers respond beautifully to them.
I use Frey's and also Red Dawn 11's; both are superb and a BIG improvement over the Cardas that I used to use.
I use Frey's and also Red Dawn 11's; both are superb and a BIG improvement over the Cardas that I used to use.