Originally Posted by
flyerCO
However with main cabin bookings, the 2nd bag will charged discounted rate. Ie SAT-SCL in main cabin you get bag 1 free and 2nd bag for $60 instead of $100. (Basically they take $40 off the cost of 2nd bag since 1 bag is already included with main cabin fare) If you booked BE the 1st bag is free because you have the AMEX, thus bag 2 is $100.
I've never heard this before, and I can't find anything on the Delta web site or bag fee calculator that corroborates this.
The only thing similar is that FOs with an Amex that provides free bags get two bags free within the US and Canada.