Hybrid threads are freaking hilarious...
Yep, they're right up there with the infamous black cougar threads.
Not doubting some cross-breeding can occur on a rare occasion, but every time somebody kills or sees a whitetail with forked G-2 it becomes a cross. Every 1.5 to 2.5 yo muley buck seen or killed without a forked G-2 is a whitetail/muley cross.