Just checked my lc17 at the same area and it seems likes it's very "super light" in that spot and probably only one or two layers thick of carbon sheet

Little update, received pictures of the paint job of my frame. Sadly it apparently will take another 30 days until it arrives. But im happy how it turned out. Bought a gold KMC chain and brown leather bartape to go with it. Now i need to find a brown sadle to match it.