had been doing a lot crow hunting with a mouth call and got sick of blowingmy brain out, i bought a J.S 512 long range. my dad new i had some sort of sickness at that point when his 16 year old son would spend a 150$ dollars on a crow call, it took me a long time to call in a yote, and then all at once things started to work out for me on the dogs i don't know if it was somthing i did or not, a couple of years ago i killed 18 in about 3 months, that is pretty good for western washington.