Full draw is far more important than brace. Brace is a good indication that the limbs are even before you tiller to full draw, but it only applies with a perfectly even bow.
For instance, if a bow has one reflexed limb, and one deflexed limb, it will look bizarre at brace, but should be even at full draw (sort of, if we ignore the fact for now that you should see some reflex/deflex etc at full draw)