RS4 B8 Disc Offset?

[fivetones]

Simple question: does anyone know the offset of the RS4 ‘wavey’ disc on our cars?

I’m toying with floating disc options and could do with knowing without removing a disc.

[johnnydog]

Would the offset of the wheels fitted help to establish the offset of the disc?
If so, the offset is shown on the inside of the rims, as an ET number.

[fivetones]

The disc offset isn’t directly related to the wheel offset unfortunately. Thanks anyway.