Thanks for accepting my answer!
Well, I never did figure out what was causing the “in the floor” thing.
But I thought I’d come back and show off my new blueprint for scaling, it works pretty much the same as the complicated one above, but it looks a whole lot nicer!
Just look at how neat it is! (The big blueprint I made before is an embarrassment. ^^;)
I really wish I knew about “interps” sooner! They are the key to getting smooth transitions.