IMO, there is no right or wrong way to call predators. I have been predator hunting for more than 35 years and have tried everything from call and wait to letting the e caller run. I normally start off with hand calls, then if that doesn't work, go with the FoxPro. Try different sequences, different calls, mix it up and find out what works for you. Main thing is to work the wind, be as still as you possibly can. Try to learn from every setup, not only what works but also what doesn't work.
We live in the land of the free because it is the home of the brave. THANKS to all our military and LEO for the job you do.