"... tangles came from my lines moving over each other in opposite directions ..." Most of us have done that a few times.
Windshield wipers is my name for them, since I don't know what everyone else calls them. Essentially, they are just extended cascades with some ground pass left in between the half axels, with walking forward and sideways to add sail pressure. They are a lot easier to do for this old fart that gets winded 270 degrees through a 360.
