Thanks for checking it out MrsAki, but I'm a little confused.
I understand that the isofix on dd1 booster is mainly for correct/easy installation, and that her weight is anchored by the seat belt (it does sit a little uneasy with me that the seat is unapproved at these weights htough, as unapproved could mean not fully tested, surely?)
but, when you say that "Research is being carried out to prove, with dynamic tests, that isofix can be used for children weighing up to 25 kg so that Group 2 seats can be included." does this then mean that the seats would include their own harnesses, as lower weight seats do, or just that full testig will be carried out on the seats?
Dd1 is currently 18kg, and sadly now too heavy for her RF seat so she travels in one of these. THis is a group 2/3 seat, so presumably group 2 seats are already included in isofix standards?
oh, why can't we have decent and clear adice in this country on safe seats for our children to travel in?! (general frustration, not aimed at anyone on tis extremely helpful and informative thread!)