Hi! RE 2017 CX5 GT Prem. When my 6 & 8 year old grandsons (both very tall for their age) belted themselves in yesterday, both shoulder belts ended up across their upper necks which is not only dangerous, but uncomfortable. I didn't have the 6 year old's booster seat at the time, but that isn't going to help as thick cushions from the house under each child didn't resolve the issue at all. Now I fear there's no adjustment for lowering the shoulder belts. What do others do about this? (The 8 year old is the size of a 12 year old) This doesn't happen in our other cars which are sedans. Is there anything I can do? Tks!