KCLT uses SODE jetways, but they are an earlier model, not available in all kind of variations as the GSX L2 ones, so on that particular gate, the jetway is a bit long, so the Stop position ( can be customized in GSX ), should probably be moved a bit back.
We are revisiting all our existing sceneries with better GSX profiles ( the one for KCLT was made before GSX L2 came out, so it has less features ), we'll look at KCLT as soon as possible.