Due to large diameter differences, tying a blood knot between Cortland Premium #4 fluorocarbon Tippet, and Scientific Anglers Sonar 10 foot leaders is a pain. the leader just doesn't want to form proper loops on the tippet when pulling everything tight. After much effort, and line coaxing, I got a pretty 5-wrap blood knot. It will go through the guised beautifully. Any tips for making this easier? And yes, I gave myself plenty of tag end on both the leader, and tippet.

Tight Lies and frisky fish

RJF

Bob,
Blood knots don't work on materials with much different diameters.
Use either a double surgeon or an Albright knot.
Couldn't you get a tapered leader with similar end to your tippet?
Herb
CTS

FG knot will also work.

Yes, I will be using the Albright not in the future. Another advantage of the Albright is that it is a modification of a knot I learned in boy scouts, and have been using to join different diameter ropes for years, called the sheepshank, or Becket, or double Becket knot. It's a very strong knot.

Tight Lies and frisky fish

RJF