SNS3Guppy,
There HAVE been some highly published crashes of hi-time C-130s losing a wing during the pull-out....
I suppose that's what cessnapuppy was referring to.
It's true that with converted military aircraft, you don't always "know where it's been".
Here in France most of the fleet is not that new either, but most of it is purpose-built (Canadair, AgCats, Air Tractors) and has never done anything but fire-fighting. Proper maintenance then does the rest.
CJ