One quick question. Are you just trying to use the two channels so you can have independent servos for aileron operation. or do you want them to function as flaps too? the discussion that is occuring seems confused as to what you want it to do which is why some are telling you not to use computer mixing but it is unavoidable if you want independent servos. if you want to set up ailerons to function only on two servos then make sure your prog mixes are set to inh which is inhibit. Select only flaperon and set to act. the menu that appears where it says ail 1 and ail 2 with l and r above it is where you can set your aileron differential. This means that you can set the up and down max deflections of either servo. examples are 1/2 inch down and 3/8 inch up this allows for nice axial rolls on certain aircraft. See recommended throws on instruction sheet. you do not need mixing on page 2/2 of advance acro. leave them all inhif you need to reverse a servo function use basic menu 1/2 reverse setting to reverse a servo. If this is all you need please say so or try to explain your need clearer