I got my rift-s today and have been using it casually, is it normal for the center of the device to be the most clear, and if I move my eyes to look at the very corners the outer rims to be a bit blurry / have some small chromatic aberration? I think I remember reading VRsets have "sweet spots" but I was just checking how your guys are, I know the Rift-S had a fixed ipd or something but mine mostly seems okay, for stuff in the middle