I think a lot of people are talking about OAT when they really just mean an "anhyzer release angle".
If you throw an overstable disc on an anny, you are able to keep the disc low to the ground which works great for low ceiling drives that need an s-curve line shape. This is a signature throw of mine.
Some people say you are putting intentional OAT on that type of throw...which sounds ridiculous. Just call it an ANHYZER and be done with it.