[michaeldmanning]

To get all of the lines to line up properly you need to learn to edit the magnets in each of your objects. Additionally, you need to make sure your line styles are "orthogonal" and all of your descendant object are aligned properly.

Just play around with parent/child object magnet positioning and you'll begin to understand how to line up everything. Sometimes you need to force a connector to attach to the right magnet to make everything perfect.