Ok so called them up, its going to be replaced when back in stock, bloke on the phone didn't really have a clue what i was talking about when i said head tracking issue.
Ah Dave, you have had no luck with your VR headsets!! Hope they get a replacement out to you quickly.
One thing i can say having owned both, apart from the the G2 being easier on the pc therefore better performance, there aint a massive difference between this and the Quest 2, its certainly not a light and day difference i was expecting imo
I did tell you ages ago that this would be the case. There was never going to be a night and day difference between them. The specs of the two headsets are very close together.