Sorry I haven't been on the forum for a week so this might post might be a little long.
Last year we went on a 12 day trek at the end of July and put our itinerary choices in on April 19th then got our itinerary on the 20th. I don't know if the 7 day treks are different but give them a call and see when they will be drawn.
There was a question about hiking real early. We were told we had to wait to for sunrise to start hiking because of bears. That being said the staff at Miranda told us that they weren't up early in the morning to check if anyone left before sunrise.
Checking in with Baldy Town is mainly for them to give you a weather report. The day before we climbed Baldy some of the staff at Miranda had to go up Baldy to help an adult advisor who got caught in a rain storm. Once he got wet and cold he stopped for a while to warm up and he pretty much went down hill from there.
My suggestion to the crew advisor would be to plan on being on the trail at sunrise. If you get into staff camp late you can always do a program in the next morning but that puts you behind the next day. Its nicer to hike during the morning that later in the day when either it going to start to get really hot or be raining. How early you need to get up to be on the trail at sunrise is up to your crew. When we started out the first day it was taking up close to an hour but toward the end it was under 30 minutes. I would spend some time during our shakedowns setting up and tearing down camp over and over.
In the end give your suggestion to the crew leader and let the scouts lead. They will make mistakes but there are consequences so they will adapt. In the beginning our crew leader would always allow one member of our crew to talk him into taking 20 minutes breaks after a few days of finishing out hikes in the rain he learned that sometimes a leader has to be the bad guy and say 'no'.
Post your itinerary number once you get it and I might have more input specifically for your trek.