ananas1301
Crazy flyer/crasher :D
I am a little curious, how many of your planes have more than 4 servos bigger than 10 gram?
Bigger planes normally have bigger esc with more amps to the bec.
I have one plane with 7 servos - 70A (opto) esc and separate bec but also two planes with 6 servos (one with digital servos) flying fine with the built in bec. The separate bec on the plane with opto esc does not give any more amps than a 70A esc with built in bec woud have done.
The first question does not say what a "pretty large" is - is it a plane of 3,5 - 5 kg / 7-10 lbs then most flyers would say it is normal size. Canards however might indicate a "jet plane" with speed of 200 km/h / 125 mph or more and then even a smaller plane needs more power to the servos and probably separated power to the receiver from the power to the servos.
I have RC cars which need 12 kg servos and they have UBEC´s