How old before sitting in the backseat...

[poodlepusher]

Hello. I'm new so forgive me if this is the wrong cateogory for this query.

It seems to fit "development" so here goes:

How old does your 2nd baby have to be before he/ she sits in the backseat of a Phil and Ted's Sport?

My little girl is very long and the cocoon is straining at the ends. Also she's stuck in there with nothing to look at. I'd like to get her into the "seat" option as soon as its safe and comfortabl for her to do so but can't find any info anywhere about what month this is possible. (I have indeed lost my P&T pamphlet)

Does anyone have know for sure?

booklet says 6mths

I used the second seat from 4 mths

they can lie underneath without the cocoon as well.

Thanks very much.
I'm heartened to hear 4 months is a possibility. She's 2.5 months now and not going to tolerate being stuffed in the back much longer.