Like Boehunter mentions, you don't need the decoy at the water hole. IMO it would drastically lower you chance of success by using it. Many times at water holes the cows will be the first ones in. If they get close enough to bust your decoy, your chances for a bull are gone for some time.Im bow hunting Elk this year in New Mexico. For the early part of the season I do a lot of water hole hunting. I am thinking about trying my Montana cow Elk decoy at the water hole. Have any of you guys tried these? Any pointers on there use?