#1 dome : servos or micro-servos ?

today, my order arrives with servos, micro-servos and few accessories
I will test classical servo like Futaba FP-S148 and another with a micro-servo Tower Pro 9g SG90.
The micro-servo is interesting by his size and weight (only 9g) compared to 35-45g for a classic servo.
The only question now : Is a micro-servo strong enough to operate pie panels...