I've just had a windscreen replacement done on insurance. Due to the HUD insurance approved an OEM windscreen. After getting it back I've found that there is a distinct double image in my preferred HUD position. If I lower the display or slouch down it goes away. I've had it back to the installers this morning. They agree that its not quite right, but suggested that I was being hyper aware post windscreen replacement and that so far their preferred solution is that I drive around and experiment