Im coming up from Texas to hunt in NE Ok this week and i'm interested to see how well rattling works in OK vs west texas where I hunt every year. Rattling is extremely effective. Not 100% but usually rattle up at least one per hunt. I have used calls such as the Estrus Can Bleat and grunt calls. These work really well too depending on the stage of the rut. Prior to or after the rut grunt calls work well. During the peak of the rut, an estrus bleat works great.