I use mix on my Cubs , I mix in about 15 % rudder with the ailerons to help in the turns . I have this on a switch so that I can turn it off... I often fly with it off so that I can enjoy the sensation of truly flying the plane myself .. Full size pilots use many computerized electronic devices to assist them in flying planes these days.. The old days of stick and rudder are just part of learning to fly.. Now we need to learn how to operate computers and how to set them up so that they can tell our planes what to do...I think we need to relax and try to enjoy the computerized aids offered to us but at the same time we need to learn how to properly fly our planes , .. The only way we can do that is by going back to the stick and rudder ..So I think there is room for both flying with the mix on or off .That's my opinion...