Thanks Lynn, I'm going to call the Flying Smiles Kites and see if they have a line set. If I can't get my hands on a set, I'll definitely borrow a line from you.
Yes, the Symphony quad kite is definitely a different animal from other quads. It loves to move sideways, but not so much up and down. I believe the person that produced this kite lived in the Washington DC area and would show up to competitions around that area. I can't remember the exact years, but definitely in the 1990's. Around that time TC Powers was pushing his Ultra dual/quad line kite. I was never really impressed with that kite or any delta that was flown as a quad