Originally Posted by MoscaPescador
Go to your local shop, and borrow a demo reel that is spooled up with an eight weight line (heck, try a nine weight line if you really feel like it). Do some parking lot casting with a big puffy indicator tied to the end of the leader. If you like that line, then you will know what choice to make.
Ask your fishing buddies or the guys at your local fly shop for what is the best line strategy for your region and how you fish (walk and wade, float tube, boat).
I'm a big fan of the Rio Outbound Short lines. These are integrated shooting heads that are overlined by two line sizes. These were designed to help rods throw large payloads.
Dennis has made a great point with the Rio Outbound Short lines, I use an 11 & 12 in the salt with lots of wind, Rio hit the mark with this model.