I just got a new Nautilus and am reading the manual, as I do with every seat I get. It's making me wonder if I have been doing the seat belt installation correctly.
1) I was told at my local health department to use the locking clip if the seat belt didn't lock in place after being pulled all the way out and then let back in. Mine do lock in this way. But, the car seat manual says to use it if I have a certain kind of seat belt tongue. Mine do not slide completely freely, but also don't look like what's pictured in the manual -- they have two slots and the belt is threaded through both of them.
2) I thread the seat belt through the path on the car seat and buckle it. I then pull the seat belt all the way out and let it back in so that it is locked (this step is not mentioned in the car seat manual). I then kneel on the car seat and tighten it down, check for tightness and repeat as needed.
So, am I doing it right? I don't need the locking clip, right? Why can't these things be made more clear? How do they expect parents who don't read the manual front to back AND do internet research to get their seats installed properly? Grrr.