I have occasionally been inside of the 1 hour check-in due to unforeseen circumstances and still made the J/S.

So, own metal doesn't equal own schedule, so it's more of a rental metal versus something you can control....and, getting to the "dark side" of the airport isn't as easy as going from gate to gate, or even Terminal to Terminal (in ORD or other similar nightmare connections). So, 30 minutes definitely pushing the credibility of making it-depending upon your exact mileage.

That being said, unaware of any consequences of an offline guy not making the J/S versus the shunning FedEx Mgt can do to us for failing to make it