Axis – factory FR setup

So the floyd is supposed to go one way only on this one, right? Years ago I bought a pre-owned Axis, previous owner had it set up to float so that It can also raise the pitch by a semitone. I’d like to reset it to the original state and I’m wondering what that looks like. On the official product page (Axis | Guitars | Ernie Ball Music Man) it looks like the base plate is not parallel with the body, is this correct? I just don’t see how this would allow only lowering, on mine (with the older FR model) it seems to me that the back of the base plate would need to touch the body to achieve that. I’ll have an experienced luthier set it up for me, but before that I’d like to understand every detail of the desired, original state, would appreciate some input. :confused: