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Tom Rowland, host of the Tom Rowland Podcast, tests two of the most popular fishing knots in this How 2 Tuesday episode: the uni knot versus the San Diego Jam. Using Daiwa J Braid fluorocarbon in 20 pound test, Tom ties both knots with precise specifications—the uni with five turns, the San Diego Jam with seven—and puts them to the test to determine which is actually stronger. The results reveal a winner, but the margin is razor-thin. What you'll discover in this episode goes beyond just numbers: Tom shares exactly why both knots are reliable choices, how personal preference plays a role, and where you can access the complete knot testing data from over 40 knots tested on the Tom Rowland Podcast.
Testing with Daiwa J Braid 20 pound fluorocarbon, the uni knot broke at 20.24 pounds while the San Diego Jam broke at 20.08 pounds, giving the uni knot a slight edge. Tom Rowland notes both knots are very strong and it's really a matter of personal preference, as the difference is minimal.
Tom Rowland is the host of the Tom Rowland Podcast, where he provides fishing instruction, gear reviews, and outdoor content. He conducts detailed knot testing experiments and has compiled results from over 40 knots tested on his show into a free downloadable knot guide.
This episode of the Tom Rowland Podcast is brought to you by Star brite, the marine care products Tom trusts to keep his boat clean and protected after every day on the water. From their boat care in a bucket kit to Salt Off and cleaning solutions, Star brite supports anglers and marine conservation through Project Sea Safe. Visit Star brite here.
This episode frames a classic fishing debate: which knot reigns supreme when it comes to tying on hooks and lures? Tom sets up the showdown between the uni knot—a versatile favorite used for multiple purposes—and the San Diego Jam, a West Coast staple. Both knots have devoted followings, with many anglers swearing by one or the other exclusively. Tom knows people who only tie the San Diego Jam and others who won't use anything but the uni knot. So which camp should you be in? Tom's testing methodology ensures a fair fight: identical 20 pound Daiwa J Braid fluorocarbon line from the same spool, the uni tied with five turns, the San Diego Jam with seven. The setup and testing philosophy begin at 1:36.
Tom doesn't just tie these knots and speculate—he breaks them under controlled conditions to get real numbers. Using Daiwa J Braid fluorocarbon in 20 pound test, he meticulously ties both the uni knot with five turns and the San Diego Jam with seven turns, ensuring the line comes from the exact same spool for consistency. The results? The San Diego Jam broke at 20.08 pounds, while the uni knot edged it out at 20.24 pounds. But what does a difference of just 0.16 pounds really mean for your fishing? Tom explains why both knots are incredibly strong and why you're not going to go wrong with either choice. The real winner might just be the knot you can tie confidently and quickly on the water. The full test results and Tom's analysis start at 2:52.
See Tom's side-by-side knot testing in action
With breaking strengths of 20.08 versus 20.24 pounds on 20 pound test line, Tom makes a crucial point: the difference is so minimal that personal preference should be your deciding factor. Both knots performed at or above the rated line strength, which means both are doing exactly what you need them to do. Some anglers find the uni knot faster to tie, while others have muscle memory built around the San Diego Jam from years of repetition. The confidence you have in your knot matters just as much as the knot's tested strength, especially when you're fighting a fish and need to trust your connection. Tom's experience testing over 40 different knots gives him unique perspective on what separates truly superior knots from those that are simply different. Tom's take on choosing between these two knots starts at 3:10.
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SubscribeTom reveals that this uni versus San Diego Jam test is just one of over 40 knot experiments conducted on the Tom Rowland Podcast. Every single result has been compiled into a free downloadable knot guide that you can access at tomrolandpodcast.com. This resource allows you to compare knot strengths on your own and make informed decisions about which knots to use for specific applications. Whether you're tying leader to leader connections, attaching hooks and lures, or building wind-on leaders, having real tested data beats guesswork and fishing folklore every time. The guide includes breaking strengths, recommended applications, and detailed tying instructions for each knot tested. Tom explains how to access the complete knot guide at 3:29.
Don't miss this one.
Quick, practical testing that answers a question anglers debate constantly.
I've spent years testing knots because I know how critical they are to your success on the water. The connection between you and the fish is only as strong as your weakest link, and that's often the knot. What I love about this uni versus San Diego Jam test is that it proves both camps are right—both knots are excellent choices.
When I saw the results come in at 20.08 versus 20.24, I wasn't surprised. These are both battle-tested knots that have landed countless fish. The real question isn't which one is marginally stronger, but which one you can tie confidently in all conditions. That's what matters when you hook up.
If you want to see the complete testing data and compare these results against the other 40-plus knots we've tested, grab the free knot guide at tomrolandpodcast.com. And if you've been debating between these two knots, watch the full episode to see exactly how they perform under tension. This one's worth your time.
Based on Tom Rowland's testing with Daiwa J Braid 20 pound fluorocarbon, the uni knot broke at 20.24 pounds compared to the San Diego Jam at 20.08 pounds. Both knots performed at or above rated line strength, making either an excellent choice for hook connections.
Tom Rowland tied the uni knot with five turns in his testing against the San Diego Jam. This is a standard configuration for the uni knot when attaching hooks or lures to fluorocarbon leader material.
The uni knot is a versatile knot used for multiple purposes including tying on hooks and lures, while the San Diego Jam is particularly popular on the West Coast. Tom's testing showed the uni knot with five turns breaking at 20.24 pounds versus the San Diego Jam with seven turns breaking at 20.08 pounds on 20 pound test line.
In Tom Rowland's testing, Daiwa J Braid fluorocarbon 20 pound test line performed at or above its rated strength. Both the uni knot and San Diego Jam broke above 20 pounds, demonstrating the line's quality and the knots' effectiveness.
Tom Rowland has tested over 40 fishing knots and compiled all results into a free downloadable knot guide available at tomrolandpodcast.com. The guide allows anglers to compare knot strengths and make informed decisions about which knots to use for specific applications.
Tom breaks down essential knot categories and which situations call for each type
Learn how to choose the right fluorocarbon and pair it with the strongest knots
Tom reveals the rigging errors that lead to break-offs and lost opportunities
From boat care in a bucket to Salt Off, Star brite keeps your gear clean and protected. Supporting marine conservation through Project Sea Safe.
Shop Star briteTrusted enough to go to the Seychelles, Danco pliers are a staple in Tom's kit for reliability and performance.
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Get Protected - (727) 498-5551Tom Rowland - Host, Tom Rowland Podcast
Download the Tom Rowland Podcast Knot Guide with over 40 tested knots and complete breaking strength data.
Tom Rowland is the host of the Tom Rowland Podcast, where he shares fishing strategy, gear reviews, and outdoor content with a focus on practical instruction and detailed testing. Tom has conducted knot strength tests on over 40 different fishing knots and compiled the results into a free resource for anglers. He fishes locations ranging from the Florida Keys to the Seychelles and is supported by sponsors including Star brite, Danco, Nikon, and HH Insurance.
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