Johnnyb53 ... your comment ( SERIOUSLY fast ) brings up a question , I always believed , electricity traveled at the same speed regardless of size or type of conducter , correct me if i'm wrong .
We're not talking about electricity per se. We're talking about electronic signal. It's the difference between electrical and electronic technologies. As far as different speeds for conductors, why would you believe that they're absolutely uniform regardless of size or type of conductor? It's well known, for example, that no metal conductor is as fast as the speed of light, and that silver is about 8% faster than copper. Nordost publishes the speeds of all their cables as a percentage of the speed of light. Furthermore, different frequencies travel at different speeds, and there is a relationship between wavelength and conductor depth at which point signal transmission is affected by skin effect. This is where the Mapleshade jumpers shine, as they are so thin that it takes skin effect out of the equation (or so I've heard).
When I say "fast," I'm referring to signal rise time. It has a lockstep relationship to high frequency bandwidth, but it also has an audible influence on the leading edges of transients and how much of notes' beginnings are audible. If a conductor's upper frequency response limit is 20KHz, its rise time is 1/40,000 of a second at best. This is nowhere near fast enough to transmit SP/DIF signals or video, which need rise times measured in microseconds, let alone HDMI 1.4 content.
And as far as all that goes, I'm reporting what I heard and its influence on the rest of my system. It does sort of fly in the face of conventional wisdom, but those little Mapleshade ribbon jumpers were game-changers.