My 4yo is 39 pounds in jeans and a t-shirt. He's been 39 pounds for a few months now. I turned him ff a few months back when he first weighed in at 39 pounds and he was begging to be ff. He moved from a Radian with a 40lbs rf limit to a Frontier 80. His legs fall asleep on a regular basis in the Frontier and he screams. I've tried teaching him to pull his legs up (criss-cross style) but he falls asleep and down they go. We live 30 minutes from town so not going for long rides is not an option. Now he's asking to sit rf again. Would you move him back to the Radian for another pound and try to get a new Radian? Or just tell him to suck it up? Or another option? The Radian does not install ff in my van (2000 Dodge Ram 12 passenger) AT ALL. I've tried and tried with no success. I really want to get him a Foonf, but you know......