I would highly recommend Debbi Wong for car seat installation and advice. She came to my house and spent over 2 hours patiently testing out all of the various configurations between 2 cars and multiple car seats to figure out the optimal configuration. She was extremely thorough and careful with her installs and was super knowledge (e.g. she knew all of the nuances and rules between the various seats). We will definitely call Debbi again next time!
Amazing