"Here's where I'm stuck: I can re-run the entire file, and lose 60 minutes of machine time. "
personally, i would do this until you figure things out. but, you may consider figuring out why your bit broke (speeds and feeds?), or ou might be back in the same boat again...
personally, i would do this until you figure things out. but, you may consider figuring out why your bit broke (speeds and feeds?), or ou might be back in the same boat again...