Yes sullivt, I also believe they have very short memories, thats why we can hunt them and shoot them in the same areas year after year, just like every other animal out there.

Howler: 1) when I go howling/locating at night and get a response I go back there the next day because MOST times the coyotes will only howl from their den spot or hunting grounds, SO it is safe to say that the spot is there territory and chances are will be there in the morning because as you know, coyotes have a set territory.
2) I don't use a howler on every stand, I use coyote vocalizations on every stand. WHY? because territory is the #1 issue of coyotes, thats where they Den, hunt, feel safe. NOW by howling, I give the impression that there is another coyote in the territory, and that makes the resident coyotes mad. SO by howling 2-3-4 times and then to a distress it looks like there is an imposter in the area stealing the food. There is no set type of vocalization that I use, as long as its of coyote. Sometimes dominant male, sometimes challenge barks, maybe a female, whatever, it all works.

I don't believe coyotes know gunshots as danger, as I said when the trucks come chasing and shootin they run because it is not an everyday thing. How about this. If you have a bird dog and you train it from when it is a pup. When you fire your .22 then your .410 then the 20 gauge then the 12. the dog stays with you because from when it was a pup you have been showing it that the noise is ok, its a part of life, no reason to be scared. NOW take a dog that has never been hunted over and fire a gun right over it, What will happen? The dog will probably run full bore away. Does it know that the bullet will hurt him? NO it is scared of the noise and has never experianced it before.

If your calling is good enough, you should be able to call coyotes back up in CO. KS. NH. or anyhere. As far as you not having a double on a stand in KS, I think you will. give it time. Coyotes are very stupid, they always have been and always will be. You want to call some tough coyotes? come up to the North east, they are tough to trick up here, coyote hunting is not a popular sport out here, so they should be easy as pie right? NOPE.
It is not because they are smart, it is because they have thick cover to use.