If you need to sit 3 across I would look at the Radian80. I know some people say there is no difference between the 65 and 80 but if it were me I would buy the 80 over the 65 because you never know if your child grows slow there is a possiblity you could keep one of them in it to 80lbs? They are not that wide and are easy to install 3 across I understand and are good traveling seats too. I am considering getting one for an extra seat and for traveling.
From alot of previous posts I have read on the expertise of people's knowledge on booster seats.. here is some sites and articles I would reference.. Some of these have been referenced on this board before.. that is how I found them to read them:
http://www.cpsafety.com/articles/BoosterShop.aspx
http://www.carseat.org/Boosters/630.pdf
http://www.aap.org/family/carseatguide.htm#BoosterSeats
Good info on Booster fitting:
http://www.cpsafety.com/articles/boosterfit.aspx
Here are some links on car crash test videos with different types of booster seats:
Video of High Back Booster with deap side wings:
http://www.oeamtc.at/netautor/html_s...ordliftpro.mpg
Video of high back booster with shallow side wings
http://www.oeamtc.at/netautor/html_s.../htsbesafe.mpg
Video of a no back booster
http://www.oeamtc.at/netautor/html_s...g_P3_vorne.mpg
Some other good info from a previous post:
1. Maturity. A booster only works if he is correctly positioned at the time of a crash. Since you never know when that will be, he must stay seated upright, back in the seat with the belt buckled and in front of him, laying correctly on his shoulder. He cannot unbuckle the seatbelt, put it under his arm, fall asleep and slump over, or reach out for a dropped toy. He must be able to do this for every ride, the entire ride. The minimum that ANY safety organization recommends is 4 years old and most CPS techs and moms will tell you that 5-6 years old is much more reasonable to expect this. I'm curious as to what government site is saying a not yet 3 yo is safe in a booster? Do you have a link?
2. Head excursion. A 34 lb 2.75 yo is very different propportions than a 34 lb 4 yo. A 3 year-old's head is much bigger in proportion to his body than a 5-6 year old. This means that his head will be a much larger force going forward in the event of a crash with less body mass to anchor him in the car. If you look at the NHTSA crash test data for boosters, a 33lb 3 yo dummy will usually have a much greater head excursion than a 47 lb 6 yo dummy for the same seat. Julie (joolsplus2) has often said that head injury rates are higher for boosters until about age 5 - she's off at Lifesavers right now, but I'll try and find a link.
At his age and weight, you have a few options. You could skip another convertible unless you really want another one - the Fisher Price Safe Voyage Deluxe or the Sunshine Kids Radian65 ($130-180) are two with tall top slots, higher weight limits and aren't super expensive if you want to get a convertible.
There are a few choices of combination seats which harness to 40 or 65 lbs and then become a booster. The Evenflo Chase and the Graco Cargo ($80-100) harness to 40 lbs and then become boosters. They have tall top slots. However, if he reaches 40 lbs before he is ready for a booster, you may be back to buying another seat. The Cosco/Safety 1st Apex harnesses to 65 lbs, has tall top slots and then becomes a booster. It needs to have a high seatback or headrest behind it, though, so check that out. It is $100-130.
Kelle
Mom to Riley (05-03)
(She's a girl, not a boy)
Used to sit in REGENT
NOW SITS IN FRONTIER
WE LOVE!!!