Many, if not most, modern fly lines come with a factory welded loop for an easy leader connection. The problem is that if you're using a straight shot of leader material that's under 40lb. test, the diameter of that leader can cut into the the welded loop while fighting a big fish, trying to free…
Understanding Fly Line to Leader Connections
Fly fishing knots: From reel arbor to fly
Loop to loop is bad - Try attaching your leader to the fly line this way - Troutbitten
Does anybody have experience with these leaders? The Orvis SuperStrong 2 pack is what I have been using but is a bit expensive. : r/flyfishing
What To Do If Your Welded Loop Breaks, The Better Connection
What To Do If Your Welded Loop Breaks, The Better Connection
Loop to loop is bad - Try attaching your leader to the fly line this way - Troutbitten
What To Do If Your Welded Loop Breaks, The Better Connection
The Full Mono Rig System - All the variations, with formulas and adjustments - Troutbitten
DIY Fly Line Loop with Step-by-Step Instructions - Fly Fishing, Gink and Gasoline, How to Fly Fish, Trout Fishing, Fly Tying
Perfection knot in float line? - Fly Fishing - Maine Fly Fish
Picking the Perfect Fly-Fishing Leader - Fly Fisherman
This happened to My 7wt intermediate sink line can i cut it and just use a nail knot? Would that work fine? : r/flyfishing
Fly Fishing Rods and Reels - A guide to Rigging – Montana Casting Co.