I finally got around to reaching out to Bigfoot and got a quick response from Grant, as I was expecting based on reading about how he went the extra mile.
For those that may be interested, or the small population that does have a 3000 10.11, here is the answer that I got:
The roof is fitted and then cut at the joint of the front and rear cap to a butt joint. It is then bonded with a urethane sealant. He said that this is the "weakest link". Not sure if that was referring to just the roof or the entire camper exterior in terms of preventing water intrusion.
I will plan on pulling the molding and resealing this winter.