I turned on the normals buffer for that view that maximizes the visibility of the reflection banding and the normal buffer does not show the banding. I even took it a screenshot into Photoshop and messed with the levels/curves to enhance any “invisible” banding that may be there - the normals buffer, when enhanced, shows banding horizontally in a totally different pattern than the reflection - which is as expected since there is a “gradient” of sorts going from top to bottom. So I don’t think the normals are to blame…