DV,
I'm not sure whether you are intentionally flaming, but comments like...
OK, Mighty Hunter AGE, you claim to be "current"
... are far from endearing.
I agree with your comments regarding the tollerances dictated by the IPT etc. to the engineers, but just like aircrew, engineers also apply experience and knowledge when carrying out their primary duties.
Mighty Hunter AGE,
You'll need to be more careful with your posts otherwise we might suspect you're beginning to like us aircrew!