I have good success bugling. I mostly hunt areas that don't get much pressure, I've killed four bulls by bugling them in. One day I called in five bulls at once, I know this sounds like B.S but it's 100% true. We saw fifteen bulls that day and called in seven inside forty yards and never got a shot. I hunt mostly in the timber (lodgepole pine) the best way I've found to get them to come in close is to be very aggressive in breaking branches and stomping around and bugling like the biggest bull in the woods, I make a tremendous amount of noise I probably look like a mad man. I have been caught by elk a few times, they just stand and stare like they can't believe it. I know this is completely opposite of what most people say, but it works for me.