my daughter is almost 9 months old and is about to outgrow her infant car seat (in height but not in weight) o am struggling to decide on a convertible car seat. any suggestions? I have been looking at the safety first multifit 3-1, but am not sure it's a great option. I like the Evenflo Symphony Elite or just the symphony model. I also like the sureride. please help me make a good choice.