i tried out my new tx today for the first time it is a JR 6102 it came with 5 537 servos 3 of them are whisper quiet and the other 2 make a bunch of noise there is no irugular movement but they are about 10 times as loud as the other 3 .Is this something i should
take back to where i got them or will they be fine
thank you in advance
Rich