[axle27]

The way I do it this:

I thread the line throught the fly (or lure).

Make a loop about 1.5" long (approximately) then hold the tag line and main line between my thumb and finger.

Insert the hemo into the the loop and twirl it 5 or 6 times to get the twists.

Grasp the tag line with the hemo's and pull it back through the loop.

At this point, I put down the hemo's and grasp the tag end in my teeth. I pull the main line and the lure directly away from each other while holding onto the tagline. Once the knot is cinched down on the fly (or lure), I test it to see if slips.

If not, I cut the tag and off we go.

It's an excellent way of doing it for flourocarbon as this stuff can be a bear to tie this knot with. Beats the heck out of trying to twirl or twist the lure/fly/swivel in your fingers and run the tag line back through the loop.