I'm getting ready to pull the trigger and buy a Foxpro Shock wave. Everything I've read says it's well worth the money. Are any of you serious Alaska callers using this machine? I still have an FX3 but never had the results I was expecting from it. I did better 15 years ago with a tape and tape recorder. I've got access to some property where the landowners are complaining about the coyotes and they want me to come thin them out.