Alright, now you got me stumped lol. What is it exactly that you're seeing that makes you think this one is YB but the other is not? Just the little bit of additional black on the belly? I thought that didn't matter so much but that the edges of the belly are what matter and that with YB there is checkering and it's usually pixilated or peppered at the low ends of the sides. I can see that on my YB but this one still looks clean to me other than the black patches on the actual belly. Is that common for YB?