i always look for the double lung shot but in reality i only get it maybe 30% of the time. part of huntin is taking your chances with the elements and not having a perfect shot situations. i've never lost a deer yet but i know it will happen sooner or later. me personally i would take a shot in the rain or heavy snow if the animal was not broadside. i have a lot of confidece in the equipment they have out there now a days( broadheads, arrows, releases ect.). i'm adecent good shot but no state champ by any means. i maybe over confident but i'd rather be that then skittish about taking the shot.