Ds is currently rf in a Radian xtsl. He just turned 5, he's about 42 inches tall, and is about 42 pounds. I'm keeping a close eye on his weight so that I can turn him when it's necessary, but when I look at the harness slots, his shoulders now are just barely below the top harness slot. Since a ff harness is supposed to be threaded through slots above his shoulders, I'm wondering if this means it's going to be time for me to find a new seat? I swear I've seen pictures of 7 year olds in the Radian, but obviously, I can't tell from a picture what size the child is actually.
If I do need a new seat, I would be considering a Britax combination, I think they have on with the anti-sub clip? Is it likely a Britax would last longer in terms of harness height/overall booster capacity? Or am I just thinking of this all wrong?