After looking through some galleries I have found pictures of seats,very boring I know.

The top photo (thankyou Helm) is how I would like my seats to look.(flat)
The second (thankyou Crossfiretech) is similar to how my passenger seat is except I have three of these ripples.(sagging)
I noticed on some of the preview cars that they had central stitching like on the SLK,maybe to prevent this .
Are there only a few of us with this or is this a crossfire seating trait?
It would seem that the waffle pattern does not help.