It's not complicated. They sprout an entirely different angle off the beam. How to mathermatically define that or put in a way that even ChatGPT level humans can understand, idk, but I can tell you when I see one which is which. Rare cases it's ambiguous, but those are rare. Here's the deal on those rarities - follow the spirit of AR and most times you'll be fine. Use it to justfy whacking a little marginal basket rack deer, good luck. Same scenario on a real grown-up buck sporting big headgear, fire away. It's pretty simple, like I said. OP photo is 100% G-1 brows.