Since the bait is established in advance I'd suggest scent enhancements as a way to spruce your baits. Adding different foods will have minimal impact in a short period.

Such would be a honey, licorice or bacon burn (as mentioned). Or you could use products like bear sense smoking sticks. I know many bearhunters and outfitters who usescents in addition to there baits. Anise is a great bear attractant and in the past a licorce burn or pure anise oilburn has yielded results for myself (even without a bait established). So my first choice would be theanise. Anotherwould be 10 miles of dead fish.No point in berry( to early) orrotten meat (should already be in the air by way of the meat scrapes).

FYI Bear Sense link:http://cabelas.com/cabelas/en/templates/pod/standard-pod-wrapped.jsp?_DARGS=/cabelas/en/common/catalog/pod-link.jsp_A&_DAV=MainCatcat20712-cat20096&rid=&indexId=cat20096&navActi on=push&masterpathid=&navCount=3&paren tType=index&parentId=cat20096&id=0004722

(if you go with the smoke sticks I'd advise you toget the fold down bucket they make. While one can be made out ofa plastic pail,itwillnot be as easy to transport for you)

G/L