@Rrok007
Thanks for your idea with the double coin knot.
The result is a nicer look of the join of two ropes.
But of course binding that double coin knot needs a lot of time. I think that collides with the typicall character of shibari, that the process of binding is steady flow.
One could say “Binding the double coin knots a each rope is part of preparing the ropes and is done before a bondage starts”.
But there are several Bondages which don’t need a join of another rope.
Just some thoughts of a beginner.