Nikon 300 mm/F 2,8 G ED VR II Lens

Please see the attached graphs. I used LensAlign and FocusTune to test the Nikkor 300mm f2.8G ED VRII lens, Serial Number L 209819. The lens was mounted on an Arca-Swiss Z1G (giant) monoball and Gitzo 5000 series carbon-fiber legs, at a height of 107cm. The ISO was 1600 and the shutter speed was 1/320. The lens-to-target distance was 8 meters and I used a shutter release cable. The camera body was a Nikon D4 that last week came back from Nikon after being adjusted for a back-focusing issue. For an overview of the lens AF performance, I took 4 shots at each micro-adjustment value from minus 20 to plus 20 in steps of 5 units. Based on this overview test and to look for a peak in the curve, I took 9 shots at each micro-adjustment value from plus 10 to plus 20 in steps of 2 units. As you can see both curves go up from left to right, but do not come down. Jeepers, there is no peak. Conclusion, this high-priced lens is focusing in front of the target by greater than 20 micro-adjustment units.If this was my first such experience, I would not be so appalled.Sad to say, that last month I tested a new Nikkor 85mm 1.8D lens, only to find that it was focusing behind the target by greater than minus 20 micro-adjustment units.Caveat emptor; or do you think that we pro photographers can still trust Nikon's Quality Control?