My idea is; If you tie a loop in your line large enough for the lure to pass through you could string your line through the line tie on the lure and then pass the lure through the loop in the end of the line to attach them together.  You could use this like a snap swivel without the extra bulk and not have to retie for every lure change.  Why will this/won't this work?

the loop isnt as strong as a knot.

edit: we do this with jugs but we use string.

The double line of the loop has more a chance of snagging on something. x2 with what skunked said also. Rapala has a knot that forms a loop, but its small. You couldnt loop it around a bait. It works good with hard baits though.

I worked on radio towers for a while lifting heavy steel in the air. What you are describing is basically attaching your lure in a choked position. if you look at any rigging manual or the tag on a rigging sling, the rated weight you can pick up with the sling is cut in half in the choked position. I would imagine that it would be the same effect with fishing line. It may be quick and easy to change baits but the line will not be as strong.

My idea is; If you tie a loop in your line large enough for the lure to pass through you could string your line through the line tie on the lure and then pass the lure through the loop in the end of the line to attach them together. You could use this like a snap swivel without the extra bulk and not have to retie for every lure change. Why will this/won't this work?

Test it against a spring scale BEFORE you test against a PB.

The weakest link between you and your lure is your line.  If your line is in perfect condition, then the weakest link would have to be the knot that is being tied.  The more knots, the more links.  Also, when tying to the loop, it allows a point that can cut into your line.  The cutting is what makes most knots fail in the first place.  If you use a microscope look at a knot being tied you will notice that your best knots wrap onto the lure tie, then squeeze onto the tie & the line itself.  This causes enough friction points so that one particular point is not taking the entire load.  If you were to use your idea, one certain place in the loop will take the entire load, which is why it will fail.  This idea may work with braided line as the main, and tied onto with another braid or mono leader???  But, its still going to give another weak link in your reel-to-lure