I would be floored to see anything in DFW besides a maintenance hanger, and a FA base. We may one day see a pilot base but with the way we schedule domestic flying there really is no need. International would need at least three destinations.

1) Yes, they can. and the credit days are given to you at the end of the trip. (First available reserve days past the trip)

2) No they will fly you from off days to reserve days on a GS, no need to do with with a GSWC

3) GS pay is the off days. If you are assigned a GS on a reserve day the first day then any X or * days are paid above your 70 hr guarantee.