What he said.
But I probably wouldn't pursue a fast track program to a major unless it's the major you want to spend a career at. Legacies don't seem too interested in LCC FO's, they prefer people who upgrade quickly at a regional, build PIC, and preferably serve as a check airman or other instructor. You can do all of that at an LCC, but it will take much longer, especially trying to get into the training jobs.