Coleridge, my stands are done in the same fashion.usually I incorporate equal amount of watching/listening as actual calling.Although when I call an area more open than I would like I call more constant.I maybe adding to much human logic into the calling ,but I figure a call going continuos would be more likely to bring them quickly out of their comfort zone.I also end almost every set with the ki-yi.
The 7-10 min mark seems to be my best also.after that I expect any coyote that responds to be using stealth.the runners come within 5 min , usually paired up.
one of the calls that Lewand mentions to use with the screaming grey is DSG cottontail.and I beleive baby cottontail.
seems like I need to download the screaming grey.