Xindak FA-Gold or PureNote Cerulean

I have an all SE triode system ,Audio Note DAC 3 sig(6DJ8's)/Presence pre(6DJ8's)/Wavelength Twins (6SN7's driving 2 300B's in parallel) and have been happy with Transparent Ultra for 8 years. I have always wanted to experiment with silver IC's and speaker cable. Now these two companies , along with some others , seem to be pushing the manufacturing technolgy envelope . Has anyone listened to either of these cables? Are there others I should be auditioning ? Thanks.
Chris Foley