Evaluating used servos
 

As our models age, the question of system reliability arises. With batteries, we can cycle them and determine their useful capacity. Are there any tests that may be performed to determine the condition of our servos, so as to help avoid sudden catastrophic failure? Thanks for your help and suggestions.

Evaluating used servos
 

i would suggest sendiing them in svc to who makes them, ie horizon hobby, hitec, ect.