I had originally thought the 5 seat configuration was the only one that offered a fold flat floor. To me, from other experiences I thought it was a difference between a the 2nd row being maybe a couple inches higher than the 3rd row when folded. I'm now realizing that maybe I was wrong. I've been reading a couple of threads and it seems some have said the 2nd row doesn't fold at all in a 3 row configuration. Is this true? Do the middle seats fold down only in the 5 seat configuration?