My 3 1/2 year old needs a new seat. I want to keep her in a harness as long as possible. She is only 32 lbs and 41 in tall. I like the idea of the Britax Boulevard's Side Impact but I have seen others say the top strap is only 17". She is measuring about 16 1/2 right now. When I put her in the Regent it seems HUGE for her little frame. She still fits into 18-24 month skirts. Does the Boulevard really only go to 17", because she is WAY WAY under the weight. I also tried the new Graco Nautilus, she was not a fan, even when I tried to convince her the cup holder was way cool. She said it pushed her head forward. Please help, husband isn't going to want to buy additional seats. Though if Britax truely is going to release a new seat he may not have a choice, Macy however needs a new seat ASAP.