what makes one servo better than another If they all have the same turning radius?

Ok here we go.. in order of importance for me

Speed, Power, Metal Gears, Holding power, Digital?, cost, power consumption, longevity

ram

what is digital?

not mechanical. i like the futaba stuff the besst followed by jr radios.

Buggy is right - for most important is the metal gears would be my first thing I woud look at.

Actually.. even a digital servo ultimately has a motor

But instead of a traditional potentiometer, I think it has a digital sensor to accurately read the position and so it allows a much higher "refresh rate".

This is my take.. I havent opened a digital servo yet so correct me if I'm wrong!

ram

You are mostly correct. I use Jr servos, just preference since I have a R1 but most of my friends use futaba. I prefer digital on steering due to the fast speed and the holding power. The centering feature is great. but I use non digital plastic geared servos for throttle/brake.

Here is a example of what I am curently using.

8450 on the steering
4750 on the throttle/brake

Any specific reason for the plastic on the throttle? I got an R1/R330 too!

ram

well for one thing u wouldnt necessarily strip gears on a throttle servo because it doesnt require a lot of torque to push/pull the carb arm.

btw ive got a HITEC ultra torque/metal gear for steering and a stock plastic gear servo from hpi for throttle/braking

I've heard that this can cause glitching in the radio, kinda like when putting your glo starter on the plug.

Have you been to Fernando's yet? He's got a few tracks over in Kennesaw..

i get the glitching when i put he glo igniter on, but it goes away after a few secs.