That's the worst. Those tiny springs are like ninjas, man. I've found them stuck to the side of a trash can a week later. Once had one land perfectly inside an empty mug across the workshop. Took me forever to hear it rattle when I finally picked the cup up.

Honestly, I have to push back on this a bit. That advice sounds nice but it's way too vague. "The wood just wants to be flat" doesn't actually tell you how to get it flat. What if your subfloor has a huge dip? Just knowing it should be flat doesn't fix it. I've seen people chase "flat" for hours without the right tools or methods. Sometimes you need the fancy system, or at least a long level and some shims, not just a folksy saying. Simple advice can miss the real, complicated work.