I am new to the giant scale 3D birds, and I will set up a 33% 3D plane soon and am buying right now all needed stuff. I have already 4 JR 2721 servos (116 oz & .18 sec) on hand, so I really would like to use those (at least on ailerons), so I don't need to buy new ones. My question basically is : Are the 2721's strong and fast enough for 33% applications (for 3D flying), and also : do you use a matchbox for non digital servos also so they don't fight each other, or are the matchboxes only for digital servos and not needed for the 2721's ?
Can I stay with the 2721 servos or should I buy 8411's for the rudder and elevator and just use the 2721's on ailerons or go all 8411's ?
Thanks