Donuts are great and so are rolls. You can pack alot more in. Dogfood would work great but is alot heavier. You can pack in a little at a time but if you leave pack it out or you will turn the bears into night feeders. Thats why I like to take in one huge amount and sit over it until its gone over the period of a couple of days. If there are good bear concentrations thats all it should take. Spread the grease all around the bait. As another bear crosses the trail he will follow the trail to the bait and carry it off for other bears to follow. You will create a web of scent trails all over the place leading to your bait. Do that with stink bait and ALOT of goodies and I beleive that you will score.