If the bears are not hitting your bait, I was wondering if you are advertising or not. It is always a good idea to get some stink out. I like to use sardines and liquid smoke to get the air filled. Once the bears start coming in I then lay off the stink. Try putting some grease around the bait so that when one does come in, he may drag the smell away from the pile for you and leave a trail for others to follow. You are getting into a good time to see bears as the are starting to feel a little frisky if you know what I mean.