And then now another (I hope) helpful tip! A lot of us use aquarium tubing (see the picture!) to prevent the wire from digging into the bark of the tree when we are bending thick branches toward each other with the help of a tension wire between those two branches!
See example below: Imagine that the right side tubing is bended around a tree trunk or branch! And now we want to bend that left side tubing just like the right side around a trunk or branch, but then we have a problem because we cant stick the wirers trough the tube to tightened them together (red arrow)?!
Below: Well here is the solution to that problem! With the help of a concave cutter (see the picture!) cut out a small bite off one side of the tub!
Below: So that you are left with a piece of tube that looks like this (see the picture!)!
Below: Now you do can run both ends of the wire through both ends of the tube en run them through the hole you just cut out! Slide the tube down the wire as tightly against the bark as possible and with a tong twist both ends of the wire as tight as necessary to bend and hold the two branch/es or two trunks in position!
Hope this will help you!
Hans van Meer.