Awesome!
Got another letter from my boy today. I can't tell when he wrote it, but it was early this week. He said he had one sleepless night (only four hours was allotted, and he had firewatch, whatever that is), but he'd only screwed up a few times and hadn't yet gotten into any real trouble for it.
He assured us he had made the right decision and that he was fine.
They might just make a Marine out of him yet. ;-)