The one piece Bighorn was called the Grand Slam, at least it was when G. Fred Asbel owned the company. There was/is another company that produced/produces bows under the Bighorn name (not the same company). Don't know if they named any of their models a Predator.
I checked Big Jim's site. The two Bighorn "Predators" are definitely Bighorns, not Pittsley predators. I'm pretty sure there is no writing on the bow that describes them as Predators. They should be called Grand Slams. Don't know where along the way the name was changed.