I'm just going off what the documented airfoil is. It's the same for the entire 100 series like I said. Perhaps a cuffed leading edge does not apply.
I was going to ask you about where you got this document. To my knowledge the NACA airfoils used are a starting point for the general flight characteristics needed. From there the designers fine tune it to eliminate any undesirable characteristics of the original airfoil. These changes are typically proprietary and quite difficult to come by.
If anyone has a copy of "Cessna Wings for the World" hand I would bet that book will tell you the wing differences. There have been quite a few over the 172's history. I'm not familiar with the 150/152 enough. FWIW the "cuff" that is being referred to is most noticeable on the outboard half of the wing. You'll notice what appears to be a more negative camber on the first few inches of the under side of the later 172s when compared with older ones. That is because of the cuff.