The thing that gets me is how the videos themselves are built to erase the memory of the one before. Every clip ends right at the punchline or the big reveal, so your brain never gets that little closing moment that tells it "okay, that's done, file it away." Three hours of that and you have no file folders at all, just one long blur. I noticed this with cooking videos, I can watch twenty in a row and remember maybe two. But if I sit and watch one ten minute video on the same recipe, I can tell you every step the next day.

So when you say it read 1/4 inch off on the long runs, how did you actually catch it? Like were you checking against a known distance or did something just look wrong when you went to set cabinets or frames? I ask because 1/4 inch over 30 feet is sneaky, it won't show up on a short check, you'd swear the thing is dead on until you're way down the wall and suddenly nothing lines up. Did it stay off after the drop or did it drift more over time? I've got an old rotary that took a hit and I keep telling myself it's fine but now you got me wondering. Chalk line is smart but that only gets you two points, what do you do to check the vertical on it too?