I’m 3 fingers above the bellybutton for 1A, before I fold the string over to make the slipknot. 3 shorter than belly button for 5a.
All of these preferences are hilarious when I think about people who have long legs and short torsos.
An exaggeration, but still, a buddy of mine makes most cars seem like clown cars, because whenever he sits in a car his knees come up several inches above his waist.