I just went out this weekend and killed a coyote under the exact circumstances you were discribing. I have been hunting coyotes obsessively for 12 years and the biggest thing you need to understand about predator hunting is that the sounds, camo, gun size and shape, bullets, and the truck you drive mean nothing if the actual setup is not perfect. Coyotes are everywhere you go and all will come to a call if you pay more attention to the setup. Coyotes in western washington are used to thick and rough terrain. What they are also used to is getting shot at by ever gun hunter during deer and elk season when they enter a clearcut. I can't tell you exactly what is going on but if you are consitently not calling in coyotes, go outside what you have been doing and try something completly different. If the clearcuts are heavily traveled throughout the year the chances of calling one out are slim to none. try using a shotgun and go into the timber for an upclose and personal meeting. Also scout way more and hunt less. What i mean is put more thought into when and where you go. Watch the weather and plan ahead how you day will plan out. Don't waste your time just hitting up every spot you think has an animal living there, and think that if you make a sound that sounds like what you see on tv, that a coyote will suddenly appear. Keep your head up and I promise you that a coyote is in your future