I'll make a point to clear up some of the misconceptions.
There are coyote tournaments every year in Texas specifically that are hand call only. There are a fraction of the number of coyotes killed in those tournaments.
If hand calls were as good or better than e-calls, your tournament guys would be using them in every tournament. Imagine how much easier life would be if you didn't have to carry, set and retrieve the call, especially in a tournament where you are running between stands and making every step to be the most time efficient. Don't lie to yourself, the efficacy isn't comparable, and it's the sounds more than it's anything else. My most productive sounds most of the year are fights and den raids, and you aren't going to make a convincing version of either with hand calls, and if you could, you'd be hyperventilating after 20 seconds. To pretend hand calls are as effective is wistful bs. I love them, I used them effectively for decades before I ever saw an e-call, but they are not as effective. If they were, e-calls wouldn't be a multi-billion dollar industry.
