Ni all wife and i are new grandparents (well 4 months) and though it was time to get our own car seat instead of swaping and changing our sons. Bought a Joie 360 spin and its been a bit of a head ach. Iso Fix bars dont seem to just glide in and click, when pushing them into the guides, they just retract towards the Joie. Sorted belt adjustment, button is well hidden. But although its now all in situ, there seems to be a lot of sideway movement if you shake the seat...is this normal ? Thanks in advance and looking forward to help and info from fell 360 owners.