I thought you were looking for a pair of cables.
sorry, by a single run I meant a single pair, instead of bi-wire. the RD's am using atm are bi-wires. initially I wanted to get the Heimdall's bi-wires, but after hearing about the phase shift I didn't want to risk it. whether the phase shift is the case or not, I believe that a single pair of superior cables is better than two pair of lesser ones, even if it's marginal. so I feel I made the right choice.
I was thinking of getting the Norse jumpers. I might, eventually, try the Anti-Cable's too, just to compare. I will post my impressions once I receive them and used for few days
thanks for the info, much, much appreciated.