Traditional cables vary by stiffness of the core wire and how tightly it fits in the casing.
Ridges allow a close fit with the cable's inner liner but with minimum contact, so the core glides like a skater on ice. Shielded to prevent magnetic interference. Silicone dampening eliminates pointer bounce. A first - all digital display that matches paper. Now for the first time we have a digital display that matches the standards of the classic paper units of the 70's and 80's.