lionz
Thanks, great suggestion. I actually also dislike the way with the family because it feels clunky, and would much rather work with the two objects directly. However, unless I'm doing something wrong it seems that the following logic just doesn't work:
On Drag Ended -> If Sprite1 is overlapping Sprite1 -> do something.
The "do something" action just doesn't trigger, whereas it does without any problems when it's Sprite1 overlapping a Family.