- "Those 631s are not the brightest lights on the ship."
- ―B1 battle droid on the inferior capabilities of the 631 model
During the Clone Wars some battle droids from this line were stationed on Skytop Station. A B1 asked a particular 631 unit to carry an important item to another level without dropping it. No sooner had the droid turned around than he immediately tripped and dropped the item.