DS is about to turn 1, approximately 27lbs and on the top centile line for height. DH and I are both tall so he will likely continue that way. He has almost outgrown his Maxi-Cosi Pebble and I would like him to be rear-facing for a good while longer. Is Britax DualFix a good option for his size? Or any other recommendations? I am looking at mainstream options as I would like to try out a seat before we buy; we are in Scotland so can go to the Glasgow Pram Centre plus the usual chains.