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Chris, I got to work with a program off and on for a jet engine manufacturer where the engines were overflown beyond their original intended life cycles. Sometimes, cracked parts were purposely put into the test engine to see if catastrophic failure would occur. Pretty cool project looking back. We also had to gently tear the motor down, but do not touch anything. It was all about allowing the engineers to look at witness marks and possible gasket ot hardware install anamolies. I remember over the course of 15-16 years of working there, engine life cycles were increased by a healthy margin by the engineering group.
Guess my point and you seem to post above, maybe there hasn't been enough testing to fully understand Ti's true life?
I mean, who wouldn't error on the safe side? There's a lot to lose if you get it wrong.
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