The RXT is on sale at sears right now and is actually less than the R120 at snugglebugz. So, for a child that is riding outboard which would you get. It will not be used for very long, if at all for a FF seat since there is a Frontier to grow up into. I know wings are a preference thing, but what made your decision? Child is currently RFing in a Marathon 65, Canadian and is 22 months, 26 pounds. Not sure of height. Has room to grow in marathon.