Not sure if I'm posting this in the right category so Mods, please feel free to move it if it isn't. Does anyone know why the quilting, and it seems also the quality, is better on the vintage jumbos versus the jumbo XL? 9/10 Jumbo XL's I've seen have deflated quilting and does not seem to age well in comparison to the vintage jumbos. Is it a different leather? Please enlighten me as I am really curious and I've recently started an obsession with collecting vintage Chanel pieces.