This is a head-to-head fly line strength test between the manufacturer's welded loop and a loop you make yourself with nail knots, to settle which connection is actually stronger. On this How 2 Tuesday I put the factory welded loop against a homemade nail-knot loop on the same fly line. A lot of veteran fly fishermen cut the welded loop off and tie their own, so I tested both to see whether that tradition holds up.
Listen now: press play in the player above and follow along.
The manufacturer's welded loop won, and it surprised me. The welded loop was not only stronger than the homemade nail-knot loop, it was actually stronger than the fly line itself. When I pulled it, the line broke down in the line while the welded loop stayed perfectly intact, so I have 100 percent confidence in it.
A lot of fly fishermen who have been at it a while just do not trust the manufacturer's loops. They think, I have never lost a tarpon the other way, so I am not going to start now, and they cut the welded loop off and make their own loop with nail knots. This test was about whether that long-held habit actually produces a stronger connection.
When I tested the loop I made with nail knots, it did not break, the loop actually pulled out of the nail knots. It slipped. I pulled pretty hard, about as hard as I would in a rigging situation, and it still slipped out. So maybe I could have tightened the nail knots down a little better, but the welded loop did not slip at all.
You double the fly line over and then tie nail knots to hold the loop. It is best to tie them with a Tie Fast nail knot tool, probably the cheapest piece of fishing gear you can buy, a simple folded piece of aluminum that makes a really good knot. If you are not great at nail knots or just want a perfect one every time, that tool is highly suggested.
Absolutely. The welded loop broke in the line rather than at the loop, which means it is stronger than the line, so I have 100 percent confidence in it. With no compromise on the loop whatsoever, it handles tarpon and more. For most fly fishing connections, trusting the factory welded loop is the stronger choice.
I keep a free knot guide at tomrowlandpodcast.com that shows this connection plus every other knot I have ever tested on the podcast, with the breaking strength of each one. It lets you pick the connection you want in your setup based on real numbers, not tradition or guesswork.
So many veteran fly fishermen cut the factory loop off and tie their own with nail knots, trusting tradition over the manufacturer. I wanted to put both on the tester and see if that habit actually buys you a stronger connection. I set it up in the episode, so press play in the player above.
I walk through each of these in the episode. Press play in the player above.
The welded loop did not just beat my homemade loop, it was stronger than the fly line itself, breaking down in the line with no compromise on the loop at all. That changed how I think about the factory loop. I break it down in the episode, so press play in the player above.
My nail-knot loop did not break, it pulled out of the nail knots even though I pulled as hard as I would when rigging. That slippage is the lesson: a homemade loop is only as good as how tight you seat those knots. I explain in the episode, so press play in the player above.
The data flipped my expectation. On this line the manufacturer's welded loop was stronger than the line and stronger than the loop I tied myself, with zero slip.
Tradition is not always right, and that is exactly why I test these things. Grab the free knot guide at tomrowlandpodcast.com to compare every connection. Press play in the player above.
How 2 Tuesday is my weekly series where I break down one fishing skill at a time, from knots and casting to gear, tactics, and the habits that make you a better angler. Watch and listen to every How 2 Tuesday episode from Tom Rowland.
Welded loop · nail knot loop · fly line · Cortland Precision · Tie Fast knot tool · bimini twist · tarpon · loop-to-loop · Danco pliers · How 2 Tuesday · Saltwater Experience
I'm Tom Rowland, a professional fishing guide based in the Florida Keys, host of the Tom Rowland Podcast, and the longtime host of the Saltwater Experience television show. On the podcast's How 2 Tuesday series I break down one practical skill or lesson at a time, from fishing technique and gear to the habits that make you a better angler, in short, focused episodes you can put to use right away.
Tom Rowland Podcast — Episode 884: Manufacturer's Welded Loop vs. The Nail Knot (Solo — How 2 Tuesday)
In this episode: the manufacturer's welded loop that comes on fly lines versus a loop made yourself with nail knots, why some longtime fly fishermen cut the factory loop off, the Ti Fast nail knot tool, the breaking-strength test and its surprising result, and the free knot guide with every knot ever tested — in the exact words spoken.
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Tom Rowland: What's going on, everybody? It's how to Tuesday on the Tom Rowland Podcast brought to you by Danco. Today, we're talking about fly fishing and particularly the connection between your fly line and backing or your fly line and leader.
Tom Rowland: When you buy a new fly line these days, a lot of them, just like this Cortland Precision, come with a manufacturer's pre made loop in the front and also in the back. So what you would do here is a loop to loop connection with either a bimini twist to your backing or some sort of other loop not to your leader.
Tom Rowland: And a lot of fly fishermen that have been at it for a while just don't trust these lines. They think, well, I've never lost a tarpon the other way, so I'm not gonna start now. And they cut this off and they make a loop on the end.
Tom Rowland: The way that you make this loop is you tie nail knots. You double over the line and then tie nail knots. It is best if you can tie it with a Ti Fast nail knot tire.
Tom Rowland: This is a probably the cheapest piece of fishing gear that you could ever buy. I don't know how much it costs, but not much. It's a simple folded piece of aluminum, that makes a really good knot. So if you're not very good at nail knots or you just want to tie the perfect nail knot every time, this tool is highly suggested.
Tom Rowland: So what we're gonna do today is we are gonna test a welded loop versus a loop that I created with nail knots and see which one's the strongest. Here we go.
Tom Rowland: Did that surprise you? Because it sure surprised me. The manufacturer's welded loop was not only stronger than the loop that I made myself, but it was actually stronger than the line. This is the one that actually broke. You can see that the loop is here. There's no compromise whatsoever on the welded loop. And it broke down in the line right here. So that means that this part is stronger than the line.
Tom Rowland: So I will have a 100% confidence in this. It was interesting also to see what the difference was while this one broke in the line and the loop remained perfectly strong, when I did the nail knots to make my own loop, what ended up happening is the loop actually pulled out of the nail knots. It didn't break. It slipped out of the nail knots. So maybe I could have tightened them down a little bit better. But for the most part, I really pulled pretty hard, as hard as I would on a rigging situation, and it still slipped. This one did not slip.
Tom Rowland: And not only that, it was stronger than the line itself. So you can go and check out the free knot guide that we have that shows you this knot, plus all the other knots that we've ever tested on the Tom Rowland podcast. Shows you the breaking strength of each one so you can pick the knot that you want in your setup. That's it. tomrowlandpodcast.com. Go get the knot guide. See you.
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