Holy crap 75-100 every winter?Been an avid predator hunter since my first call in with a Circe jackrabbit call in 1968, that hooked me, been hunting every winter since then. Used to average 75-100 every winter, calling from nov to late feb., never was a fan of hunting spring of summer predators, but I was usually selling fur which was worthless in the off months.All my experience is out west Az and NM, so Im out of my realm here in the south. Coyotes are coyotes, so I presume the same precautions are the same no matter where you hunt them? I don't wear camo, just use muted color clothing, thousands of coyotes called to the gun have proven to me, that movement is the biggest factor along with the wind. At some point during the stand, if you havent shot the coyote, it will end up down wind. Call a few in without shooting at them just to watch what they are going to do, and you'll see them working their way steadily down wind, it's just what they are genetically predisposed to do.
As for sound, I disagree, I use volume, never start the stand low then work up , I want that coyote triggered and excited to come in and keep coming until it is in a place I can shoot it. No stopping and starting the call, turn it on, with good volume, no movement and set up cross wind with caller 20 yards to the cross wind .
Thats my .02 cents and it didn't even cost you that