Not best, but optimum Transmission?

Garsh ... settle down. My trans dipstick has 2 lines, or 2 dots. Indicating a full level, and an "add" mark. At the add mark it is supposedly 1 pint low. And for a torqueflite it is recommended to NOT go above the full mark. Mine was roughly 20% below the full mark.

What happens if you over fill a little?