Will sure knows more about it than I do, so if anything I say goes against what he tells you I would default to him...

I don't like calling unless it is a "last ditch effort". That is the way I am with all animals. If I can get ahead of them and not have to let them know that there is anything ahead, then that is ideal to me. If I do feel like I have to call, then I use a variety of cow calls hoping to sound like numerous cows at the same time. You can do it with a read and diaphram in the mouth and a hand call like the Hoochy Mamma.

My only caveat is that I have never called in a bull and gotten a shot at them. I have gotten them to within 10 yards, but never been able to release the arrow on them so what the heck do I know?

Best of luck and I am really rooting for you.