I don't know how I missed this, but wow, I'm glad I found it.

When Sammy was six, he'd think. When you were fourteen, Sam would say. They were each other's reference point, and that was a startling glimpse into their relationship, and a humbling one.

Oh, my God, what a beautiful, spot-on-PERFECT passage. You've really captured the brothers here. Awesome work, just awesome.