Originally Posted by foreigneRS
copper is shite, you want the copper alloy called cunnifer if you're going to do rigid lines.
Kunifer is a copper/nickel alloy. Its the stuff available from most motor factors for making up lines. The main reason not to use braided throughout is because of the "squirm". Unless its mounted solidly every few inches it will move slightly resulting in a softer pedal. Gonna be doing mine in kunifer run inside the car.