When maximum strength matters — offshore trolling, targeting trophy fish, or fishing structure that demands zero weak points — the FG Knot and PR Knot are the gold standard. Both approach 100% line strength, making them far stronger than the Double Uni or Alberto for braid-to-leader connections.
Quick Comparison
| Feature | FG Knot | PR Knot |
|---|---|---|
| Strength | ~95-100% | ~95-100% |
| Profile | Very slim — flat wraps | Slightly thicker — coiled wraps |
| Tools required | None (just tension) | Bobbin tool required |
| Time to tie | 2-4 minutes | 4-8 minutes |
| Difficulty to learn | Hard | Moderate (with bobbin) |
| Consistency | Technique-dependent | Very consistent |
| Cast-through guides | Excellent | Good |
| Best for | Inshore, light-medium tackle | Offshore, heavy tackle |
How They Work
FG Knot
The FG Knot weaves the braided line back and forth over the fluorocarbon or monofilament leader in alternating half-hitches. This creates a flat, interlocking grip where the braid bites into the leader under tension. The knot is actually stronger under load — pull increases the grip.
Key principle: Friction-based compression. The braid wraps squeeze the leader from both sides.
PR Knot
The PR Knot uses a bobbin tool to spin braided line in tight coils around the leader. The coils are uniform and closely spaced, creating an even distribution of friction along a longer section of the leader. Half-hitches lock the coils in place.
Key principle: Distributed friction over a longer contact area. More wraps = more surface grip.
Strength Analysis
In controlled pull testing, both knots consistently break at or near the rated line strength — meaning the line fails before the knot does.
Why Both Are So Strong
Traditional knots (Clinch, Uni, Palomar) concentrate stress at a single point — the bend around the hook eye. The FG and PR distribute stress along 1-2 inches of contact between the braid and leader. This eliminates the single point of failure.
When the FG Can Fail
- Inconsistent tension while weaving — some wraps are loose, others tight
- Not enough wraps (minimum 20 alternating passes recommended)
- Half-hitch locks are not tight enough
- Tying in wind or on a rocking boat without proper tension
When the PR Can Fail
- The bobbin wraps are too loose (not enough tension on the bobbin)
- Not enough coils (minimum 30-40 wraps recommended)
- Cutting the tag end too close to the last half-hitch
Guide-Friendliness
FG Knot: The Slimmest Connection
The FG creates an almost flat connection. The braided wraps compress to nearly the same diameter as the leader alone. This passes through rod guides with minimal resistance — you can cast it repeatedly without the “tick” you get from bulkier knots.
PR Knot: Slightly Bulkier
The PR’s coiled wraps add a small amount of diameter, and the connection is longer (1-2 inches vs under 1 inch for the FG). It still passes through guides far better than a Double Uni, but the FG wins here when casting distance and smoothness matter.
Ease of Tying
FG Knot — Hard to Learn, Fast Once Mastered
The FG Knot requires:
- Maintaining consistent tension on the leader (many anglers hold it in their teeth or use a cleat)
- Alternating the braid over and under the leader in a specific weaving pattern
- Keeping every wrap tight and uniform
- Adding half-hitch locks with the correct orientation
Learning curve: Plan on 20-30 practice attempts before your FG Knots are reliable. Watch video tutorials — the hand positions are easier to learn visually.
PR Knot — Easier to Learn, Slower to Tie
The PR Knot requires:
- Loading your braided line onto the bobbin
- Spinning the bobbin to create coils around the leader
- Tying half-hitch locks to secure the coils
The bobbin does most of the precision work for you. The wraps are automatically uniform because the bobbin applies consistent tension. Most anglers can tie a reliable PR Knot on their third or fourth attempt.
The tradeoff: The PR Knot takes 4-8 minutes versus 2-4 minutes for the FG. You also need to carry the bobbin tool.
Best Situations for Each
Choose the FG Knot When:
- Inshore fishing — snook, redfish, striped bass, where you cast and retrieve
- Lighter tackle — 10-30lb braid to 15-40lb leader
- Casting matters — the slim profile casts farther with less guide friction
- You do not want to carry extra tools — no bobbin needed
- Speed — retying on the water is faster with the FG
- Fly fishing saltwater — slim enough for light rod guides
Choose the PR Knot When:
- Offshore fishing — tuna, marlin, GT, where failure is not an option
- Heavy tackle — 50-130lb braid to 60-200lb leader
- Trolling — the connection must handle sustained high drag pressure
- Consistency matters more than speed — the bobbin ensures reliable wraps
- Night fishing or rough conditions — easier to tie when hand-weaving is impractical
- You are newer to braid-to-leader knots — more forgiving tying process
Alternatives
| Knot | Strength | When to Use |
|---|---|---|
| Alberto Knot | ~90% | Quick braid-to-leader when FG/PR is overkill |
| Double Uni | ~85% | Easiest braid-to-leader; fine for freshwater |
| Bristol Knot | ~95% | Loop-to-loop method, very strong |
| GT Knot | ~95% | Alternative to FG for heavy tackle |
The Bottom Line
For most anglers: Learn the FG Knot first. It covers the widest range of fishing situations, requires no tools, and is faster to tie. Once you have it dialed in, it is the most practical near-100% braid-to-leader connection.
For offshore and heavy tackle: Add the PR Knot to your repertoire. The bobbin produces more consistent results with heavy lines, and when you are connected to a 200-pound fish, consistency matters more than speed.
Both are elite knots. Knowing one makes you a better angler. Knowing both makes you prepared for anything.