i used the 65lb as a basic reference, if you use 50lb you may be able to get an extra 50yds on, try the Jerry Brown as well. It's a 12 strand uncoated braid, and you may be able to get a bit more line on because of the diameter. Blue Marlin Chronicles has it for a good price,
Jerry Brown Fishing Line | Spectra Fishing Line | Non Hollow Core Spectra | Line One $ 60 for 600yds, $30 for 300yds