Since posting this, I’ve seen some topics about it. I’m just afraid I’m not dealing with the same thing. The only reason I say that, is videos people have taken show a wobble that suggests there’s some play somewhere. Mine doesn’t feel like loose play, but more like a flex. If there was play, I would think it would feel like there’s a start and stop point with free movement in between. With mine, everything is rigid, but I can move the front and back ends of my bed up and down.
I would say the front and back ends can move +/- ~3mm vertically. Which is a lot IMO, but there’s no hard stop, if I were to push harder, it would move more. The first 1mm or so is very easy to move, easy enough that the printer head moves it. I could push one end down some, and it will mostly return, but not 100%, so too hard of a touch and the entire level is off.
If you still think I just have a loose carriage, I’ll take your word for it and tighten it up. Thanks for your response and the guide too!