Sketch Lines and Visibility Graphics

You turned off all the model categories in your view using Visibility/Graphic Overrides, the easily remembered VV or VG keyboard shortcut. Now you create or edit an element defined by a sketch and no linework...hmmm. Sketch Lines are a model category and are affected by the "Lines" category so you can't turn off the "Lines" category without losing them too. They don't appear as an item in the list because Revit assumes that it doesn't make sense to turn them off. Too bad turning off the parent category results in the same thing. Maybe sketch lines need to divorce their parent?