Rye many types of airplanes can indeed benefit from a mild Aileron to Rudder mix. It most often is the high wing cabin types and for those I would recommend also around 10 to 15% and contrary to what you think it does not have to be done through a switch and not necessary to switch off for landing.

That is a lovely tiger you have there. That airplane is a good example of a type that there is really no benefit or use for that mix however. So if that is the subject airplane as mentioned you are better off without it and of course do experiment with using the rudder manually, its fun.

John