I use the following #9 floating lines.
Cortland Precision Pike Line - Steep taper, heavy head for turning big pike flies (including tubes) (1/0 - 8/0)
Airflo Cold Saltwater Striper Line - Longer head, less taper, great all round line (2-3/0)
Barrio GT120 - better for smaller flies (4-1)
Rio Shooting head - very short and heavy, punches thriugh the wind.
Partridge Payload - a very strange line but seems to carry wind resistant flies well.