Waco / Raptor:
Understandably there might be some concerns (as with all flight matters) but I'd say that if they get 558 airborne again they would more likely treat it with kid gloves than push it to its limits.
In terms of risk, how much time will it actually be in the air per year? The risk must be a blummin' lot lower than having say a Malaysian 747 running on empty flying over London every day (OK I'm exaggerating here but you know what I mean).
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"If I press this button do the wings fall off?"