Watch it Matt. We were casting a 7/8 GrandSpey which is what we would suggest for a sink tip system on this rod. If I were using a floating line I would use the XLT 8/9. I am sure one of the Accelerator lines would work very well also, just look for one about 900 grains and you are on your way.
Matt was casting the entire GrandSpey, on the grass, with no effort, it was fun to watch. I want to see him perform with a 13'8 Skagit Specialist and a shooting head!
It is not important how you fish but that you fish....