Quick question. I don't know if there's an answer that I haven't found. The S dimensions are: The 3 dimensions are: My question is where is the hip room taken from? When I had my X in for service, the OA said the width is taken out of the seat. I imagine this is more speaking without knowing what they're talking about. But, that would be a concern for those of us that think the bolsters in the seat are already a little tight. Thoughts?