if its that close where you are analyzing lines on an OEM graph - you likely shouldn't even be going (in the real world that is)
When it comes to a go/no go decision you better believe I'm analyzing the charts. If I tell the boss we can't leave I want it to based on numbers, not guesswork.
Don't you get a set of books at recurrent on those birds or is CAE/FSI cheapin' out on ya?