Keep in mind, folks... it is entirely possible for GZ to have been in legitimate fear for his life, for Trayvon really to have been the aggressor and beating on him, holding him down, etc and for Zimmerman to be entirely, completely in the clear from a legal standpoint.
AND YET
To still be embellishing and adding flourish and even outright deceiving people about the exact details.
Why is this?
Human nature, anyone who understands it won't find this as any surprise.
If you were in a situation identical to what happened to GZ, you'd feel guilty, judged, embarrassed, and like every eye was on you, like a magnifying glass was over you. In fact, you'd be right.
Even if you were completely 100% morally in the clear, you'd STILL feel like shit about it, feel guilty about it, and have a strong natural impulse to twist things a little bit to reduce your own guilt in it, to spread the blame around more, to exaggerate your peril, etc etc. You might not even be aware of this impulse, but most likely you would be to some degree. It'd be a blend of subconsciously doing this, and consciously doing it.
This is simple human nature.
So, yea GZ might be embellishing. He might be exaggerating his peril at that time. Or he might not, it's even possible that he thinks he's exaggerating it but he isn't. If that's confusing, what I mean is he could have a false idea of his peril, which he's then embellishing upward, but in REALITY his peril actually was as bad or worse than he thought.
This is the way complicated, real situations are.
It's entirely in keeping with normal, expected behavior for him to misremember (deliberately, or not, or some combination) the dispatch into saying more stuff which seemed to egg him on to following Trayvon or getting out of his car. This reduces his own guilt in his own mind. This makes his actions seem less stupid in hindsight to himself, and he hopes to those he is recounting the story to. Again, he is some MIXTURE of aware of doing this, and not aware of doing it.
So might he have flat out, 100% fabricated Trayvon noticing and going for the gun? Definitely, very real possibility that he made that up.
Might he have pulled "you gonna die tonight muthafucka" straight out of his ass? Absolutely possible. Maybe even likely.
Is he embellishing certain little elements, to reduce his own feelings of guilt, make it a better more exciting story, cover his ass legally, and try to spread the blame for what ended up happening around more onto Trayvon, more onto the dispatch, more onto the neighbors, more onto the responding officers? Abso-fucking-lutely he is. And once again I say, this is partially conscious on his part, partially subconscious.
Does ANY of this change the fact that the EVIDENCE shows lawful, moral self-defense? No.
THE BALLISTICS.
THE INJURIES.
WHAT JOHN SAW.
GEORGE'S SCREAMS.
THE END.