I quit buying stainless brake lines many years ago - they're a PITA to deal with. Many of the double flares are micro-cracked or uneven/distorted (because the stainless is so hard), and leaks at the brass blocks are common; if you over-torque them to stop the leaks, the hard stainless will deform the soft seats in the brass blocks, and then they won't seal with ANY brake line. If you get a bad one and have to cut it and install a new fitting, it's almost impossible to double-flare stainless lines with home flaring tools without damaging the lines. OEM TBW (tinned Bundyweld) brake lines will outlast any of us - they lasted the first 40 years with lousy care, didn't they? Just my opinion.