Best bait I have ever used was German Rye bread that I used to buy at a bread maker in Winnipeg at 5.00 a big industrial bag, that they were about to throw away. I would fill up a 45 gallon drum stuffed full.
In front of the barrel I would scrape away all of the leafs etc and put down 20 to 40 liters of used restaurant grease, so that every bear that visited the location would leave a great secent trail back to my bait from wherever it went.
Every time I baited I would bring in a coleman stove and burn a can of honey and or a package of bacon until it was burnt to a crisp. I would also hang a bucket of honey and honey combes that I would get from a local bee keeper and hang it in a tree where bears could not get at it and where the sun could heat it up during the day.
This setup worked great for me and what I like about this set up it that I didnt have to deal with any stinking animal parts, carcasses or roting fish.
Biggest Black bear had a skull measurment of 22 1/4"