My son is 5 months. Our car seat says he can be in this until 30 inches.... he has hit this mark now. He also weighs 23.75 pounds..... other mommies, if you have a baby length in the in the 99 percentile...... what to do? Buy another car seat carrier that allows for extra length?  We do have the grace forever car seat...... but I do not think I can put this rear facing... what have other mommies done? Buy another or move to the 4ever?