Thank you! It's all so confusing!!
Do you know when I have to change DD1 to a booster? She is still using a MaxiRider without height markers, with the inbuilt harness. She is 5 years old but only little, i.e. I think only between 15 and 16 kilos, lol. Found the info I got with it but it doesn't even say, just says you can change them at 4. I want her to stay with the 5 point harness as long as she can.
This is one of the issues I think with the change over, it isn't that clear. If the MaxiRider doesn't have height markers it will have a weight limit (probably 18kg) - so if it is 18kg then providing her shoulders aren't more than 2.5cm above the top harness slot. I think the main thing have learnt is that you should always follow manufacturers guidelines, but don't worry about age - age is only really in there due to the law mainly - rather than safety, also if the seat you have doesn't allow you to do what you want e.g. keep harness there is likely to be another seat that does, but finding out what that one is, is not as easy as it should be.