Such gyros have double servo input - double servo output (PLUS one additional servo lead for the control of the sensitivity), and ONE axis to stabilize.
How you mix and program all the "differences" between the two ailerons (or elevons, flaperons, tailerons,...) : it does not matter and all this remains unaffected by the gyro operation.
The ACT Fuzzy Pro V3 has also a "learning" feature during your set-up, so that the corrective movements of your gyro never ever surpass the mechanical limits you are pre-setting. (= some kind of "ATV" limits which you program into the gyro).

If fact, you must first install and program and fly your plane WITHOUT the gyro in between (thus : with preference also the maiden flights !!!), and once you are happy and confident with all your settings in your transmitter programs (aileron differential, ATV, AFR, mixers,...) then you disconnect the servo leads of both ailerons and plug them into the gyro inputs and you add the gyro feature. The two leads soming out of the gyro are plugged instead in the RX.
Then you triple check the eventual REVERSE plus correct corrective direction of the movement, plus the absolute maximum throws allowed by the gyro.
After that, it is a matter of fine-tuning the two potmeters on the gyro (by consecutive test flights) for max sensitivity (or on the ATV on the TX for the gyro sensitivity channel) plus the way how the gyro interacts between your stick movements and his own "findings" (= soft or dynamic setting).

It is in fact very easy to do, you only need to follow the different steps of set-up and programming in the right order, and always remember it is much better to start from zero percent gyro action and build up your gyro interaction to its optimal setting, than to start from hyper-sensitive and to dial down.

Nicolas.