Ps. I can't remember which car seat I have installed with LATCH and which has a 3 pt on it. But for anyone using a 3 pt on a carseat, I HIGHLY recommend a product called the Mighty-Tite or something like that, sold all over online. Costs $15-20, hooks on the seatbelt after you've installed the carseat and you can ratchet it to remove any slack in the belt. I can get the 3pt installed seat MUCH tighter in the car than the one I've got installed with LATCH.


, either way using a rack I can distribute the weight to be more centered and retain a nice ride. 
I'll come help you install them. I need a trip up north anyways...