RE: ball bearing vs bushing servos
I'm an advanced flyer at best. Definitely not contest material. I just enjoy "stretching the envelope" of my current skill set. And it is fun to pull off some of the wilder looking maneuvers. I particularly enjoy spins.
Your mention of heavier servos got me thinking. I've always used a standard 600mah receiver battery. Do you think there may be a problem with current draw with 5 control servos (2 airleron, 2 elevator, 1 rudder)?