Ive had Ludwig duds over the decades.I wondered that too. But it's not likely that different an effect compared to the factory paint that Ludwig used in the mid-late 60s. My theory of what's wrong with the drums is that the glue in the ply layup may have voids. I can't proove it. I just know the floor tom sounds dead no matter what I've tried, all the toms have a very small sweet spot that's very hard to find, even after new edges, countless head combos and tuning machinations. I finally reached a point of frustration after living with it for 16 years when I said "I'm done, this is not a musical instrument". That's why I haven't offered it for sale on DFO.
I believe in both cases,it was a void in the plies,just dead.
I got away from vintage because of tuning and hardware.
Love SBP,your kit will look great!