Our twins are 11.5 months, though they were born 2 months premature so they're on the smaller side for their age. They have good head control so they don't need the full 45 degrees, but I'm just trying to make sure they'll be around the 30 degrees that the Britax manual recommends for RF.
The FD guys left the noodles in the car, so I tried it again with one of them. I'm beginning to think it was their inexperience with this model of car seat that may have been part of the problem. I noticed at first with the noodle under the seat that the base caught against the top of one of the LATCH clips, so I readjusted it and snugged it down. Right now, I can't even see the noodle as I have it so tight it appears to have completely compressed it (I would upload a pic, but the forum says I'm over quota right now).
The noodle did help a little, but only about 1-5 degrees. I was also unable to make the LATCH clips disengage when shaking the seat with a good amount of force, which is what the FD guys kept running into. I did trim the noodle a bit more than they had it too, to make sure it fit in the space between the LATCH anchors, so maybe in combination with what I mentioned above that was what was tripping them up?
Regardless, the seat base is still far from level, though like I said it is a bit better than before. I am hesitant to add anymore padding under it, as I've been told that adding too much is bad as the void becomes an issue.
@wavegal - so you think the angle there might be sufficient? We're looking up official inspection sites to get it looked at tomorrow, though in MO in our area almost every FD comes up as an official inspection site.