I think the dimples have a lot to do with the color of the pf. I have a JP2LE right next to a Stranger Things LE. Upon close examination, they both have the same size and depth of dimpling, but they are much more visible on the darker Stranger Things pf. I know its a controversial subject, but my SW had the same initial dimpling and it did eventually even out.
I own a TSPP i bought nib in 2004. As a test, i removed the apron and dropped a ball from 5 inches. Did the same test on Stranger things, JP2LE, BM66, and SW. guess what, nearly identical dimpling. I also have a Huo TZ that I am the second owner of. Same test, same result. I have come to the conclusion that the color of the pf has alot to do with it. Additionally, the new led lighting seems to amplify the effect.
Anymore, I look at the dimpling and it makes me smile. It represents all the fun my family And I have had playing the game. I look at playing it enough to make it even out as a goal like continuing to best the grand champion score.