Ever tried to make a bridle with tied loops and keep the line lengths the same?
A far easier way is to make a bridle with slip knots.
Use Dacron for the bridle lines. Due to the relative short lines stretch is not an issue here, and Dacron is sturdier than spectra or Dyneema.. ( for foils you should use one of those however )
The “mushroom” at the end of the line is made by melting it with a lighter, and then tapping it to the side of the lighter so the melted part flattens a bit.
1: Tie a knot around the connector and pull it tight. Cut off the line just behind the knot.
Loosen it and measure how much is needed for it.
2: Cut off the lengths ( adding the lengths for the knots ) needed for the bridle, Make “mushrooms” at the ends with a lighter.
3: Tie the bridle with a slipknot to the kite.
In case you’re wondering about strength: I use it on kites that tear 500 pound lines: never lost a bridle...
Most kites can do without a middle tunnel: use a single strip of Dacron instead. The kite will be easier to make, stronger and easier to disassemble in case of breakage. Another advantage is that some kites will turn somewhat faster because the sail can slide sideways a bit.
The hole for the center T is stronger and the bottom pocket is easily made out of Velcro. Add a drilled piece of tubing to absorb shocks.