I got plus as I didn't need the other features of the pro and I'm cheap. I af'ed the following 4 lenses:
For the first two lenses I used the 50x focal length rule, for the last two they were both done at around 15 feet which is the furthest away I could get from my desktop in my basement which is somewhat less than the 50x feet range. As my D700 only supports one tune setting I picked the telephoto end. You can see my 24-120 needed the most correcting which surprised me. I did two runs of each lens and then combined the numbers and it was very consistent between runs (if I recall the 24-120 was 9 and 10 so I went with 9 just because).
Nikon AF 35mm f/2.0D -2
Sigma HSM 50 f/1.4 +2
Nikon AF-S 105mm f/2.8 VR IF-ED +3
Nikon AF-S 24-120 f/4 VR IF-ED +9
All in all it was really easy and the results are surprising. With my primes, for the most part I only noticed a slight increase in sharpness which was only really apparent wide open, with the 24-120 it made the lens really shine. I was happy with it (it's an f/4 lenses so already pretty decent DoF) but now it's really sharp. For the 105VR, as it's a macro lens, I chose to FT it at infinite rather than macro ranges because I use it as portrait lens more than a macro lens.
Should be easier to do on Canon as the software can do it all for you while on Nikon you have to adjust the fine tune manually between each series of shots. Still didn't take long at all.
Haven't tried my 70-300VR yet but that lens has to go back to Nikon to fix the busted VR.