Will Digital servos make a buzzing noise even if they are not under a load? A just upgraded my jammin buggy with 3pk converted to spektrum with futaba digital high torque servo. They buzz even when at center. Also, can you use a external fail safe with the spektrum system?

My Hitech digital , makes a whining sound when it`s just sitting there , don`t worry about it .

they are constantly finding there centre point,they are much more accurate that analog servos i know i will never go back after have a high end digital coreless servo

Ya, no worries. Mine does the same thing. But the constant searching from the digital servo will drain batteries more.

What size battery pack do you all use? Do you use a fail safe with the spektrum built in fail safe?

if it irritates you then keep the front wheels off the ground it stops the noise. like if youre wrenching or something

I use a 2400Mah pack I built myself. I persoanlly don't use a fail safe at all. I use rubber bands on the throttle linkage. I wouldn't use an external fail safe, use the spektum one.

Thanks, I will remove the external fsil safe

2300 mAh + rubber bands here too - never a problem.