I am having the following problem. I bought the recaro start for my 7 yr old who is fairly short and thin for his age (in 25% in both categories) and he has developped a sensitivity to the cover of the Recaro. doesn't like to sit back in it and so leans forward. the seatbelt therefore slips down his shoulder. All in all, I am not getting him to sit well in it and am really concerned. He likes to recline the seat so he is in more of a lying down position on long drives. I need to get some advice help in making him safe. my DH won't want to buy another seat for him, but if the Recaro is not safe, I will insist. Any advice would be most appreciated.