OK, I've given that a try but I'm afraid my subject has banned me from posting shots of her on pain of... well... pain.
I was shooting under artificial light with an exposure reading of approximately f/4, 1/60 sec at ISO 800 using the AF-S 28-70mm f/2.8 set to 35mm. Both cameras were set to continuous AF and dynamic area selection, and the AF assist on the D100 was disabled. My subject was moving across my field of view and from about 15 feet to about 10 feet from the camera at walking pace.
Both cameras kept my subject in focus without any problems, however it was immediately noticable that the D1 adjusted the focus in smaller steps and did so about twice as frequently as the D100.
It's hard for me to be sure what I've proved here. I'd guess that the difference in how the two cameras behave could make a difference if the subject was moving faster.