if you use bait put it out a little ways from your stand site. put some in the shadowed area that you can see into during daylight, and make a trail to an area in direct sun light. that way as the sun drops you will have more shooting time.
i used to hunt during the night over a rusted out garbage can, which i placed on a graveled area. i sat in my blind about 50 yards off. when i heard my can being moved around i turned on my Qbeam. i also used a coke bottle with corn in the bottle. the glass was easy to hear, when being rolled around on the rocks.
I always wanted to invent a feeder rigged with a light on a rehostat and a motion detector, so when motion at the feeder was detected the red light would power up ever so slowly, so as not to frighten a hog. i would have called it the outlaw and made some money.