I hear that using a mouth call for snows is pretty much pointless. But where i live in CA the e-callers are not legal so i am looking for some opinions on it. The refuges that i hunt have lots of snow geese wintering on them, but being public they get a ton of pressure from people pass shooting at them as they fly off of the closed zone. If I could get away from the pressure and set a modest spread will a mouth call increase my ability to bring the birds in or will i be wasting my breath? If they are worth it some suggestions on which call to get would be appreciated.