We were just talking about this. They also said it makes them uncomfortable for tall and husky babies. comparies to the plastic tray. Dennis you should be taking notes. I'm sure you are next soon.
That 4'9" rule makes me crazy! I'm pretty short 5' even, ( Irish side don't cha know ) and my two girls have yet to see the upside of 5', and they are 22 and 16...I'd love to see my 22 year old daughter zooming around town in her Dodge Avenger sitting in a car seat!!! lololololol