One day, I went into the Marina to pay for my fuel and get some coffee and ran into Robbie Delph. He was messing around with a connection from braided line to fluorocarbon and showed me how to tie, what is now known as the FG Knot or The Sebile Knot and also can go by the name of the GT Knot. I called it a Delph Knot for years.
Whatever you call it, it is the strongest connection from braid to fluorocarbon that I have ever seen. This knot has many benefits beyond it's strength. As a constriction knot, the harder it is pulled, the tighter it gets. Most importantly, however, is the fact that it is smooth and goes through the guides easily.
I used this knot while we were fishing for money in the ESPN Redfish Cup and The IFA Redfish Tour. That is the ultimate test of gear in my opinion. When the money is on the line, which knot do you choose?
I became supremely confident with this one when tied with the right combination of fluorocarbon and braided line. If the 2 are compatible, this knot is the best ever. I have, however, encountered issues with slippage with certain brands.
When tying this knot, watch for slippage. Many people get frustrated when this happens, and think that they are not tying it correctly, but it could be as simple to fix as a change in brands.
Here is a video with step by step instructions on how to tie the knot known by a few names...The FG Knot, The Sebile Knot, The Delph Knot and The GT Knot.
If the video doesn't display, please click here