Aaron, by all means take your calls along on the bear hunt. I've called black bears in Washingotn State, British Columbia and Saskatchewan, all with the same old Weems Wild Call. It has a jack rabbit voice in it that sounds an awful lot like a mule deer fawn, and will make a good fawn bleat if you quaver it. I usually set up in really thick timber, with grassy lanes or small meadows, but always so that I can see downwind, because the black bears tend to circle downwind when they get within 40 yards or so. One in really thick timber in Sask. circled downwind and then climbed about 8 feet up a tree to look over brush at me from 25 yards out.
I blow the call for 10-20 seconds every minute or so, tapering to at least once every three minutes, and for bear I'd stay 45 minutes. The same sound and sequence has been deadly on calling lynx also. I think most any prey sound will do for bears, and that your ambush set up is far more important than the precise sound you make.
Bears have arrived within five to 15 minutes usually, but sometimes longer. They seem to be fairly easy to call. Last spring in Sask. I only called at two stands on one afternoon, and called in three bears, one within 15 yards in underbrush so think I could only see part of him. One time a huge boar 1/4 mile away across a valley would turn his head to look at the call sound, but wouldn't leave his berry patch. So we stalked him. It is sometimes hard to evaluate size of called bears since they don't like to pose in the open and will use cover in their approach.