Starting with the board bow I did for a build along, I've been leaving my bows braced for a day before moving on with more tillering. So far, i have't had a bow break, there has been little to no loss in weight, tillering to full draw is usually much easier, and even on stronger bows the first time bracing is much easier. Paul Comstock described this in Vol. 3 of TBB for neolithic bows that are violated in grain.
What does everyone else do?