Pretty straightforward. First of all, drill small hole where fishing line will be attached. Then insert line into hole one, with small amount of superglue. Wait until it dries (minute or two) Measure the lenght of the line and add, lets say 3-4 mm extra.
Attach the wire into hole number two, again glue it together with sg.
Then heat up the scalpel blade with candle/lighter and just near it close to the line. Line will contract due to a heat. You can repeat this step until you are satisfied.
It takes some practice, but the result is much better than ez-wire.
Some of my modeling friends also use: heated nail, solder gun, or even a hairdryer.
Hope that helps!