miles Hagen wrote an answer about Mammut Tusk Superdry Climbing Rope - 9.8mm on July 10, 2012
Duodess is not bi-color. It is Bi-pattern. The pattern changes at the middle. The difference is Bi-pattern they do not have to splice the sheath and on a bi color they do and it creates a bump the can wear funny at the change. And yes they actually splice the sheath yarns but not the cores of course to make a bi color rope.