A little overkill for the intended application but definately one to consider for larger and more demanding aircraft. Somethi ng that has not been addressed much so far is analog versus digital servos. Digitals are typically more accurate, have greater holding power, and develop their rated torque almost immediately. Analog servos have to travel farther in their sweep to reah full torque and are generally less accurate in resolution and centering but work well in many situations. If cost is a factor, and it usually is, if your not ganging servos the better metal geared analogs may serve you well.