Mh yeah, the Vcore does fluctuate a bit.. undervolting is quite annoying, Vdroop with LLC is quite ok.
Still too much if you come from a DFI that does bios=idle=load if you want it to.. or even better, works with EIST at any overclock so you actually get considerably lower idle Vcore. Hope they hurry the f up with the mobo.. my 965 is waiting :>