Virtual Dynamics Speaker Cable

Has anyone used
virtual Dynamics "David" Speaker cables and what are your impressions.
Nice cables .Close to the Nite series...Good value if you can find the "R" ( refurbished ) set from V.D..or a good used price.......Pretty neutral with good bass..If your system is bright don't buy then they can sound thin on a already neutral or bright system...Usually works well in a tube system where there's a little warmth.....Hope that helps......
In my system (small two channel), they're the best I've owned yet but, my speaker manufacturer recommends that I use small gauge non Bi-wired. My Davids are 10 gauge and biwire. So... I am trying out other cables right now.