Grading 1964 Topps Standups / Sets Prevalent with Wax Stains?

[Smanzari]

Hey Everyone-

Got the opportunity to pick up a really nice partial set of '64 Stand-Ups. From the Front, you would think most of these are gorgeous, unpunched, and in the EX range (with some outliers); HOWEVER, it seems MOST are impacted by some sort of wax stains on the back.

I absolutely LOVE this set and its more than likely my favorite insert set of the '60s; that being said, my experience with these cards is pretty minimal, so minimal that I did not notice the "Prevalent Wax Stain" Issue in the set prior to digging with these (as I think there's a handful of slab candidates).

So, long story / question short, How do Third Party Graders (and me for Raw) grade these? I would assume them having Wax Stains more than likely puts them in the VG-EX Range, at best, despite how nice the rest of the card looks OR due to the staining being prevalent throughout the set, is it not considered "as much of a hit?"

I appreciate the help!