Sorry for getting your name wrong. This thread simply has to much info for me to appreciate all of it at one go.
I guess I was not clear enough when I asked for clarifications on the various terms. I have tried to upload a picture of the rig to clarify but for some reason Sailnet is not accepting the file.
So I will try with words.
The rig I am interested in has a twin spreader rig consisting of a wire A starting from the deck to the tip of the first spreader then to the tip of the second spreader and then on to the mast.
It also has a wire B starting from the same place as A going up at an angle to the mast at the lower spreader height.
There is a second wire C going up at an angle from the outer tip of the lower spreader to the mast at the height of the upper spreader.
I guess my question is: what are the names of wires A,B,C?