I'm just a noob, but I've worked around Predators, F22s, and F16s enough to have learned a few things.
- Servos fail. More than anyone really likes to speak about.
- Synchros and servos are horribly sensitive to grounding issues.
-Predators and F22's are still performing "unscheduled landings" after years of testing mainly due to computer and/or FBW issues.
This is not an area for the "If it ain't broke fix it 'till it is" mentality to rear its ugly head. But I'm just a loser without a plane to go work on what do I know? Happy sanding.