A friend of mine used to be the manager of the Subaru rally team, and he recommended that all the brakelines are run in stainless steel braided teflon. He claimed that they were just as resistant to expansion as solid lines. I fitted Racetech flexible lines throughout, and could never get a hard pedal. I am now fitting solid lines wherever possible, and using Racetech lines for the last bit to the caliper. I bought copper just before I read this string, I might have to think again...So, has anyone any actual experience of copper failing ? Would it be a wise precaution to anneal the flared ends after forming ? If the response is 'Throw the copper away', then lets hear it !
Tony.