after baiting bears for over 15 yrs. i would have to agree that the grizzly's are your problem. they will drive off anything they don't want around including you, so be careful. if you change your bait station ,you will probably run into the same problem, so i would suggest trying to set up your station just a few days before the season starts and try that. i know that sounds strange and you might not agree but sometimes you don't have much choice. the reasoning is that there are more blacks than grizzlies and the chances are they will find your new station first and give you a chance for success before your problems start again. give it a shot and adapt to the situations presented to you, be creative. good luck