I'm not familiar with the VD cable, but I can pretty much guarantee that you will hear some difference. Whether or not you prefer the VD over the Cardas will be personal taste. I compared the Cardas to 3 or 4 cables and they all sounded different...some drastically so. Much of the difference seems to depend on transport/dac synergy too, so there's really no way to know until you try.
Upgrading from Cardas lightning to Virtual Dynmcs?
Would you wager a guess as to whether upgrading from a Cardas Digital Lightning L15 to a Virtual Dynamics Nite Digital interconnect will produce significant results. Currently use a Nite PC on the front end and like the results ie better seperation on instruments etc. The Cardas actually has a pretty nice sound {analog like} but you know , sometimes the upgrade bug bites ! THX.