I forgot to say, the book we're working on says to do 2, 4, 6, 8, 10 minute breaks with 2-10 minutes of settling in between. We've been doing 2/2/4/4/6/6/8 is the most we've gotten to. Our biggest 'problem' is that after 45 minutes or so of crying DS generally falls asleep quiet quickly & easily after we go into his room to settle him...