I'm trying to choose a new seat for my DD who is 7.5 months old and having trouble, my brain hurts. Ainsley is 7.5 months old and about 20 ish pounds. I drive a 2006 Mitsubishi Endeavor, ODD is in a Britax Frontier XT and I don't have a need to fit 3 seats across the back....no more babies for me :(. My ODD is very tall, especially in the torso so I'm assuming YDD will be simillar. I've mostly narrowed it down to the Britax Boulevard vs Sunshine Kids Radian. What I love about the Britax is the fact I can make the straps taller without having to rethread them, the no twist straps save my sanity as well. I'm just wondering how long the seat will actually last. I had ODD sit in one a few weeks ago and she had some room to grow still but she had much more room in the Radian. The Radian seems okay but I don't like that the straps have to be rethreaded, it doesn't have no twist straps and there's no head support.....it just doesn't seem as comfortable but I think it would last us a lot longer because of my tall kids. I'd like to spend the money on this seat now and have it last until she needs a booster. Any advice? Is there another seat I should be looking at?
Additionally, ODD is in her Britax Frontier but I would love to get a grandparents seat. We had cheap Alpha Omegas but she'll have outgrown those ASAP. I want to find another grandparents seat that is tall but I don't want to spend $200 on it. Are there any inexpensive seats that work for tall kids?