I use Sceery and Primos, but there are MANY calls which work just as well. Elk are like people, they made different sounds, change inflection, and sometimes sound like they even have the flu. I have to laugh when I read a thread where some self-proclaimed expert says this or that call is the "BEST". Last time I checked, no elk visit or post on the net. Therefore, no one KNOWS what an elk is really saying when they talk. We "think" we know, but we really don't. Once you spend some time listening to elk in the mtns, you'll see how different (yet alike) real elk sound.