I inherited a lot of equipment. I have a box of servos. They are all Futaba, but a mix of S3003/3004, with some S148 sprinkled in. How do you determine if a servo is good or bad? If it was bad, would it be obvious? They will be going in a GB Tiger II ARF. Any advice on which servos to use where, would be appreciated as well.

Thanks!
BH