Braided lines offer significant advantages over monofilament for many fishing situations, though these lines cost at least three times more than mono. Because of the cost difference, anglers can usually benefit from knowing the braided-line capacity of their various reels, so they don't run out of line before filling the spool or buy too much line and end up with costly leftovers. Reel manufacturers tell you how much monofilament your reel will hold, but conversion formulas to braid simply don't work well. Here's a simple way to find out the braided-line capacity of your various reels after just one line change.
Purchase an inexpensive line counter (the kind that many freshwater fishermen clip onto their rods to measure how much line is out when trolling). Clip the line counter to your saltwater rod facing backward so that the counter measures the quantity of line coming off the fill spool onto your reel. Before you begin spooling the braid, though, layer on some monofilament as backing. Write down the pound-test of the mono and how many feet you used. Knot the mono to the braid, and fill the reel with braided line, writing down how many feet of braid you put on the reel. Convert the feet to yards. Now, when you buy braided line, you'll know exactly what size spool to buy.
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