Tested the paravane again this morning moving the point that the line attaches to the pipe back and up a bit. Seems to work very well. The lines should have less chance of getting tangled. I doubt I will use the old method of two attachment lines to make a sort of bridle ever again.
Also note that yesterday's mod of making the bottom of the pipe pull down works well. The paravane does not come out of the water like it used to.