Hollering at bears is wasted effort IMO&E. Perhaps wounded ones are more responsive, but I doubt it.
I bet I'd win and I'd bet wounded are LESS responsive. LOL.
More I think about this, I"d like to know more about the hunter etc..... a bowhunter waiting out a 10 foot plus bear, I"d be willing to bet I'd take ANY legal brown with a bow. In the right situation.
Waiting a big one out, you either have lots of time and money on your hands and spend many seasons working on it, or you will be pushing the envelope.