Hi Stephennic,
I don't have the FP-314Ag, but I have most of my system wired with Furutech Audio Reference III cables and I have to say they are some of the best I've heard. But the fundamental difference between these and the one that you are looking at is that these use PCOCC wire. It is single crystal copper.
Furutech cables and connectors are generally world class, but they seem to not have the popularity in the US. They are quite well received in Japan. Try them out from the Cable Company...they offer home auditions with their stuff for an extremely nominal fee. Do a test drive with your system.