I'd up the dose a little bit. You don't have to go all the way up to 1.4. I think you might also want to consider splitting the dose. He's getting a good response, but he's not getting 12 hours. Splitting the dose will help with duration. However, I'm on vacation and won't have access to a computer for another week after tonight so I can't help. Try the higher dose and think about whether you could handle the logistics of a split. With Lucy, I had to give the second dose at +2 due to my work schedule and some weeks I couldn't do it except on the weekends. Fortunately, it didn't take long to build up enough overlap that we could go back to 2 shots a day.