a good thing is to set the full size and proxy size according
to your footages before beginning to work....
i forget quite often to do that, as lot of my co-workers.
so we've added that stuff in our menu.tcl
(here, for a 24fps 2K feature film)
# default project size
knob_default root.fps 24
knob_default root.format 2K_Super_35(full-ap)
Aurelyen