ORIGINAL: wing13z

Hi all ,
i have start to build my FB hawk and i need some information.
the manual said need 2 servos for the elevator each on shoud be 25 kg . so can i put only1 servo for the elevator 25kg? or 2 servo`s 13kg ?
or should i have follow the manual ?
also for the flaps itr 25kg .. can i put 13kg ?
or its nesseary 25kg 2 for elevator and 2 for flaps ?

if any one fly with his hawk please let me knowwhathe will need:-)