What Is Twisby Upset?

i'm not to republic. I'm sense onig, right? Yebut he sa e. No obut, you know, you're just aware of this from what's been shed. But so i'm looking through these images, and i'm like, ok, it looks close, but even your measurements show that they're different,. there's different ments on the same parts. And look, this doesn't even fit in a twisby. How can it b a match if it's copied, and in things of that nature.