how line effects casting distance

[doolay]

This question kind of goes along with my thought, in an earlier post, about getting a new casting set up specifically for Crankbaits.

Right now I have a 6'6" Cabela's Fish Eagle II; MH fast action (i think) tip. It is sporting a Shimano Citica filled with 14 lb fireline. What I'm wondering is, will the fireline decrease my distance with cranks more then it would with florocarbon or mono? If I could account for lost distance with new line I would consider doing that rather then forking out the money for a new set up. I like the idea of having one rod that can do almost anything over having multiple rods for specific tasks.

Thanks
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