I am meeting my family at Disney World so I am flying Delta for the 1st time. I am travel from GSP-ATL-MCO. I am in the main cabin but I have the option to upgrade to first class on the first leg for $74 and for the 2nd leg for $84. I was looking at doing 1st class on the second leg since it is longer. The cost is pretty close to what it would cost me to check my 2 bags (I am bringing the family luggage). If I upgrade just the 2nd leg will I get my 2 bags checked free at GSP? I have called Delta 3 times and got 3 different answers. I rep said it goes by the 1st leg. Another rep said it does not matter. A 3rd rep told me that I had to buy 1st class for both legs in order to get the free bags checked. I hope this makes sense. Thanks for any input. I am getting tired of calling.