I recently picked up a partially completed Pica Duelist. The wing has been built with 1 servo driving the ailerons. My question is, could I cut the ailerons in 2/3 and 1/3 and make the inner 1/3 on each side into flaps? Would this cause any problems?

Also, would a standard servo( 43oz torque) be sufficient for controlling the elevator?

Thanks in advance, Mike