Pixels
New member
I've never heard of that, either (which may not mean a whole lot, but...still).
It's always been that the harness should hold the child down when they "ramp up", so their heads don't become vulnerable to outside objects if "ramping up" and out of the top of the shell. Or some kind of other head/neck trauma from not being contained enough in the seat shell.
On the flip side, my understanding of the harness being at or above the shoulders for a FF child is to reduce spinal compression and to hold the child *back* as opposed to *down*.
The Graco SmartSeat requires the straps to always be below the shoulders RFing, never at, citing increased chest Gs. Knowing that, I am disinclined to allow straps above the shoulders for any RFer in any seat. It's not just ramping up that's affected by strap placement.