I recently changed out my fly line & backing on one of my reels. I usually use a nail knot to connect the backing to the fly line and another nail knot to connect the fly line to a monofilament leader loop.
It’s been quite a while since tying a nail knot, and I have a tool to help with it called the Tie-Fast, but I lost the instructions or directions.
So, I searched around to see if there were any PDF instructions on the manufacturer’s website. In the searching I found something much more informative.
On youtube, I found WildOnTheFly’s video on how to use the Tie Fast tool. It’s a great little instructional video on how to tie several knots using the tool like: nail knot, nail knot splice (blood knot), nail knot on a fly, and a snell knot (or shank tie).
If you fish and happen to have the Tie-Fast tool (or something like it), this video is worth watching. Enjoy & thanks to WildOnTheFly!