Question about new Schott 618 vs Vintage 618

[FluidicBreeze]

I've recently bought a new Schott perfecto 618 and noticed that the steerhide used for the new model feels quite different from the that of my vintage 618 from the early 2000s. It feels much thinner and lighter than the vintage steerhide. I'm not sure if it's because they are sourcing different type of cowhide or using a different approach to producing leather, or it's just about this defected piece of jacket I bought?

I wonder if anyone else here ever had this problem with the newer perfecto?