ya have to be confident, that you can deliver a quick killing shot.
has to feel good. if ya dont feel good about it, ya shouldnt shoot.
<feelin good is not thinkin to yourself that ya think ya got the animal in your sights and your arm is tired from holdin the bow drawn and ya just have to send it.>
<IMO anyone shooting their 1st , lets say 10 big game animals, i would suggest you stay around 20 yards, not 30 and 40. get a few notches under your belt and a little experience, instead of going and wounding 5 deer as the experience.