sometimes I rebend those S rods ( the parts that gose into the airlerons).
before gluing the ailerons.
I have the threaded part pionted at a 90 deg. or straight up
might have to knotch the fuselage former a little to prevent binding.
this way full throw is can be maximize.
I also trim of the length of the threaded part.

it also helps me to when setting up the servo control horn.
90 deg/90deg.
I can dial in or adjust with the sub trim on a computer radio.
but it's best to have everything at center as much as possiable manually.