I'm having twins in June. I have an almost three year old. The infant car seat I had with my 3 year old is no longer available for sale (britax b safe). Their new version (Britax b safe 35) uses a different base. How annoying is it going to be that they don't match? Should I buy two new ones instead of one? I can't tell if it's going to be a constant pain trying to get there right twin into the proper spot in the car that matches their seat or if it's not that big of a deal. I kind of want to stick to the same brand so they both fit in my double stroller

Any advice?