Brake line material

[Growler]

I am about to install new brake lines and have come to the conclusion that I want to use the copper nickel type material. This is being marketed under several names and made by different companies such as NiCopp by AGS or Cunifer available from Fedhill and made in the UK. Supposedly the Cunifer is what Volvo and Porsche use and runs just over $2/ft (for 3/16") while NiCopp you can find all over EBay for just about $1/ft). Both meet DOT specs....does anybody know if there is a difference or if one os better quality than another? Thanks