So I went the route of tuning my calls maybe to high and squeaky, I am trying to say when I back them off and can feel/hear the reed buzz more they seem more effective. So to me that is is lower than the squeaky high pitched call. When I first blow the call I think to myself I gotta get this higher, but when using it in the field it really works on turning geese. Not that deep moaning grrrrrrrrr. sound. Thanks for all the input!