I do always set that, yes, as soon as I find it, and it does
help; but I have yet to find it in Gnome 3 or xfce4. Anybody know where
it lurks?
I have not read this entire thread so maybe I am too late to the
game.
If you are still looking at how to turn on the bulls-eye around the
mouse pointer
in gnome 3 it comes with gnome tweak tool.