OK so I'm finally in a position where I am happy with this lens. For anyone with a back focus issue or who second guesses the value of this lens take it back and get another. Having been there done that with this lens I encourage all to keep hunting till you can get a good sample. If you have a copy with focus issues you will not get a clear image from this lens. I think the post of the girl in orange is a good example of that. I think her right shoulder is sharper than her right eye!! Pixel peep or not even a small image looks crap with this lens, if the lens itself has a focus issue
Lens correction only works if the lens exhibits a consistant fault right through the focal range and at all f stops (happy to be corrected). If not then you introduce front focus at the wide end of the range. Does lens correction allow nikon to release more defects in the future, I hope not!!!
If nikon wants users to pay between 1 1.5K for a lens then it better perform as specified.