Googled around and couldnt seem to get an answer:

Why use vsync in fullscreen mode? I don't activate in delphix and it seems to run very smooth in fulscreen mode.

Is this the architecture of vsync/fullscreen? What do you guys do with vsync. Is it wise to leave it off for fullscreen, since I havent noticed any difference between it being on and off in fullscreen (unless it is forced in fullscreen mode?)

Infact does the nature of fullscreen mean it will always update at the refresh rate like vsync?