We can't get the seat secure enough in the middle when we RF. But it's very secure FF. I prefer to have my daughter in the middle as it is so much safer. A study I read, linked through another thread here, confirmed what I thought when it stated that it is 43% safer in the middle. But, my daughter is 31 pounds and 33" tall at 21 months. I know that RF is recommended so I have been struggling with this. Is it safer to be FF in the middle or RF on the side?