Rob, We did 1/2 hour sets this past week in Iowa... And we had to hunt day light, and had plenty of great ground to cover... the first farm wed morning on our second stand, we called one in picture perfect, and my friend took him at about 80 yds, a small male, came into the distress calls... the 4th stand on that farm, after a half hour I hit the pup distress and had 3 come in hard, from the worst possible spot they could for us to see/get a shot, and they stopped at about 250 and turned.... this farm has ben hunted hard, and several shots taken in the last couple weeks, (Ours made number 5 in about a 3 weeks time) but they are calving on the farm so they want it hunted hard to keep them pushed out. Nothing the rest of the day... Thursday hunted hard with a 15-20 MPH wind and 70 degrees... nothing... had one on a stand that appeared to take the very easy route to wind us.... (the road) and ran right to the truck and turned and burned... ( found tracks when walking out...) other than that no sign of a coyote. yesterday morning, beautiful stand, yotes could come from every direction so split and watched to ways, ( but couldn't stay close enought to communicate... or didn't think of it at least, our bad) but buddy had two that he saw right away at beginning of call sequence at 300 yds, and they never once lifted a head or ear to the call... they went about there business as normal and eventually split and dissapeared... hoping they where moving in, the only way they'd catch wind we would have seen them... but no go... we gave them an hour and never caught glimpse... beautiful lad to hunt down there... we can to the conclusion they where not hungry, they where lazy in the warm weather, and they are bred up already... so very enjoyable few days... wish we would have knocked a couple more down though...