There are alot of good sounds out there, but I've witnessed a bunch of coyotes die to "Vittles ala Jackrabbit" over the years, when hunting out West. In the last couple years, DSG Cottontail by Foxpro has done very well.
I see your are from Illinois. I'd stick to something that is high pitch and busy. I agree with Ceider, the actual calling sound is a small piece of the pie that one must bake for calling coyotes.
Tony
