It's like when one drawer in the kitchen won't close right and suddenly the whole room feels like a mess. Fix that one thing and everything else seems fine again. Same with gear, one bad piece and your ears just lock onto it and miss all the good stuff.

Wait, you actually got it past the damper and into the flue itself? I thought those things were supposed to wedge in tight before the damper, so I'm trying to figure out if you just got a bad size match or if the balloon was deflating slowly on you. Did it feel firm when you first set it, like you had to force it in there at all? Because if it slipped that easy, I'd be more worried about the seal quality than the fit, honestly. A draft blocker that does nothing but fall into the chimney is just a fancy way to lose $260 down a hole.

Watching an episode three weeks late is still watching it, @skyler_craig, so what's the big deal?