What did your attic look like when you checked it, like could you see the joists or was it already buried? My place is a 62 build and the attic had maybe 4 inches of old stuff, so blowing in another foot made a bigger dent than the windows did. If yours is thin up there, that is where the real money is.

Nine hours in Boise sounds about right for a backing out pin, but the wiggle test alone won't catch it. A pin can feel tight and still be walking out of the back of the plug where you can't feel it, so you have to pull the boot back and look at the wire side, not just push on the front. The real save is a connector mate check after any work in that zone, even a quick one, because a pin that backs out on its own usually means the retainer clip is bent or the crimp is sitting too far back in the shell. Also grab the wire about two inches behind the plug and give it a gentle tug, that's the one that catches the ones that pass the wiggle.