Comparing Aileron Rudder Mixing to Aileron Differential impact on Adverse Yaw

This video demonstrates the degree that aileron-rudder mixing v/s aileron differential have on eliminating adverse yaw.
As the name implies, adverse yaw is an adverse condition that delays achieving solo abilities. Struggling and committing to many hours of practice before soloing has been the assumed normal burden of the student until his skills improve. Unknowingly and unnecessarily, novice RC pilots flying with adverse yaw have been fighting an additional challenge: Most novice pilots assume that a lack of correlation between their control inputs (and intentions) and the plane’s response to be strictly the need for more practice, when in fact, adverse yaw is largely the reason!
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[@weseehowcommiegoogleis3770]

This vid showed the 2 possible out comes of trying to treat the Adverse yaw disease. It caught my eye because an RC model I just acquired has aileron differential built in and I'm not sure if and A/R mixing is needed, or will this just complicate matters?

[@1RCFlightSchool]

Differential helps a bit. A-R mixing eliminates it entirely. I use both on flat bottom wing aircraft

[@1RCFlightSchool]

If the airfoil is flap bottom you can bet she would benefit from some mixing