Page 118 - Patrick Moreau-Marine "Knots How to Tie 40 Essential Knots"

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5 - You can also create a bend with two elements that are going to go in different directions, but that are
from the same primary rope.

6 - Finally, if the difference in diameter between the two ropes is significant, you can improve the sheet
bend by adding a holding point.
The working end returns from the back on and under itself.