Search the threads and get ready for an avalanche of discussion. Some people have had difficulties with stainless lines sealing at the threaded connections, other say they are great and have had no problems at all. I have a complete set for my X77 in stainless, acquired many, many years ago - I'm determined to make them work. I did salvage the original lines for the most part, may try steel lines on the next one (Pace Car refresh, still originals).
Steve