ok, I’m going to have to be a warning/downer here. I took a look at this cable and the design definitely makes total sense, especially with the copper wires being 99% in free air. However, this cable is never going to pass UL certification. All it would take is rubbing against the techflex which will frey (which is extremely easy). and all of a sudden, you have exposed "live" wires which are definitely a fire hazard inside a house. Any sharp object can just pierce through the holes in the techflex and make contact with live wires as well. I can definitely see that the performance of this cable would be exceptional because there is absolutely no restriction from any wire insulation, but anyone who uses this should do at their own risk.
Once again, I’m very sorry for stating a negative point of view here.