congrats acrstarter!
the drop off strategy can really make the difference.
couple of thoughts:
-the bears come in where you do and check your tree because you've left scent behind before or been busted in your stand-wear rubber boots and be VERY scent/movement conscious
-sometimes just parking in a different spot when you go in works if you've been busted.
-they will circle the bait to see if you or other bears are around
-listen to the squirrels,they will let you know when bears are coming long before you hear them
-wire that beaver to a tree or to the barrel

-afternoon hunts are usually fruitless unless you want to see smaller bears
-small bears come in early to avoid the bigger bears that come later
-make a track trap at your bait so you know what bears are on it
-have as much fun as possible,spring bear season is a great time to be on the land!