Just a hint on the parking issue: I only use heavy parking spaces for Concorde to avoid this problem. I designate certain parking spaces in my AFCAD for the airports I fly to and have set the parking positions the same for Concorde as for PMDG heavies and have no issues. I code my config files for Concorde using "atc_parking_codes= CONC" and use the same CONC in each of my chosen parking places within the AFCADS. Without this specification, however, GSX will send Concorde to "small" parking and as you have discovered, that will not work! I used ADE v1.7 to modify AFCADs, noting that some parking slots are angled and can't be used, so the option to realign the spots or simply limit available spots for Concorde to only those that are straight in. Using the code designate approach will allow this. I have the same issue with GSX fueling, however.