See, I was told there'd be no math.Honestly, I thought you were joshing us!
I had done some rough calculations, and they didn’t add up[1]. But what does add up is your counting. I got 74 black stripes on my Rumble 100, and 65 on the one in the photo.
[1] In particular, 75 rows at 5 rows/inch is 15”, whereas the R100 grill is just over 17” high. But at 4.38 (mine seemed closer to 4 per inch than 5), that works out. Yes, I am a math geek.
TLDR; I agree with your conclusion.


