Fireline Diameter

[defaz249er]

I recently purchased four spools of 30lb fireline to load my linecounters for diver trolling. When I spooled up the first reel I noticed that although the reel should hold 290 yds of 14lb, it only takes about 2/3 of the spool. Its supposedly 12lb mono equivalent. When I compared the fireline to mono lines its more like 15 to 17 lb diameter. That really pissed me off, now I have four spools that I wasted money on because I'll only get 200 yds on a spool. The advantage of small diameter is lost because I've used 20lb mono for years. Anyway I just wanted to vent.