Rudder-roll,
Rudder-elevator,
throttle-elevator,
throttle-rudder

These are not my mixers; I don't own an Integral. This is the setup the Dutch F3A champion (Derk vd. Vecht) uses on his Integral.

Actually, he had more mixers, but those were related to transmitter shortcomings.

Again; I'm not the one saying mixers are bad. They aren't. However, you will need the expertise to set them up correctly.

Anyways, this thread is not about the Integral. Whether or not my personal taste is different, doesn't change the fact that the Integral is a proven solution.