critch, you're certainly on the right track in that you definatly need to know what you are "saying" when you use a howler on coyotes. With a howler, if you say the wrong thing at the wrong time, it will end the hunt without you even knowing it. So, I'd also suggest checking out Randy's video's, and learn what the coyote sounds mean and when to use them. Coming into the mating season is prime time to use the howler. Learn to say the right thing at the right time, and don't over use it, and you have a very good tool for calling in call shy, late season coyotes. Good Luck!