This should probably be on the Watercooler but I thought I might get better response here. I do car seat inspections and installations and today had a lady in that has a son with this condition. He is in a seat now that is fine for his weight but he needs a seat that the weight limit for the harness straps are higher than what he has. I don't really know anything about special needs seats (separate training for that) and I do have a call in to a couple of people who have the training. But I was wondering if anyone here has run into the problem of needing car seats with a higher weight limit on the harness straps, and if so, what brand are you using? I should hear back from my contacts tomorrow but wanted to do some research tonight to see what options I can give this lady. Part of the reason that he needs something like this is that if he's just in a belt positioning booster, he either unfastens the seat belt or puts it behind him. According to his mom, he dosn't have the mental capacity to understand why he can't do this. Also, he has seizures, and mom understandably wants him to have more support than just a seat belt. Soooooooo.......anyone here have experience with special needs car seats??? Any help would be greatly appreciated!