I know of three guys that have called in and killed mtn. lions. Only one of those guys was targeting the mtn. lion, the other two were simply calling predators with the usual distress sounds, and a lion came in. The guy that was targeting the lion was using lion vocals on a Fox Pro.
So from that, it sounds like the sound ya use isn't nearly as imporatant location, location, location.
Good luck, As you're obviously aware, calling in and killing a mtn. lion ain't a walk in the park..