It will be interesting to see how it all shakes out. Personally, I don't think the Q+A is as binding as the signed LOA. But, I sure like the way the question is answered.
And, when you read the signed LOA on P.F.C, the one month invol language is embedded into the appropriate paragraph. Contrary to rumor, it is not merely a promise via FCIF.
https://pilot.fedex.com/general/post...signed_loa.pdf