Get the strongest servo you can afford, go as far out on the servo horn as possible, even if you have to buy longer servo horns (I use the Futaba 45mm wheel and cut servo "arms" from it..it is thicker than the other Futaba horns or the 35mm wheel). Then you don't have to go to the closest hole on the control horn.

But this only works if you have strong servos, weak servos will not enjoy this set-up, nor will your plane.

Lots of throw, no flutter.