I hate that statement. Paint preparation sucks. You are jammed in a small space or working overhead covered in dust, working with chemicals that cause death, cancer, impotence and hair loss in California (fortunately not in Florida where the only risks are small arms fire, drivers and getting run over by a boater on Columbus Day), and you are going to cover over all your prep work. I hate paint prep at so many levels.
At the moment I am prepping the forward heads. I plan to use Interlux Brightside on the ceiling and Interlux Perfection on the deck. If anyone have a better recommendation please, please comment.