Well we took our daughter in this am for twelve month check up and she is at 36 pounds and 34 inches (daddy is almost 7 ft) and her current carseat only rear faces to 30 pounds so had to ff and it only ff to 40 ponds. Are there and carseats to rf higher weights and ff at higher weight limits. She is the smallest of 5. My 3 & 6 year old are in custom car seats due to special needs (insurance covered cost) . Cost is an issue however if the seat can last more than six months I would not worry about cost as much. I only recently found out about rf til at least 2. My 3 yr old was over 30 pounds at 9 months so he was an early ff. I would like to rf is it possible. The oldest 2 are 11 & 12 in seat belts. With tall children what are my options. Thanks