Naw, that's not true. LAQT is required training, but it's not like an aircraft swap. Any bus driver can get to FLL from any other base, and ahead of those more senior who already got it via system bid.

As to the OP asking how to base trade, you have to contact the company and have your name put on the list, then wait for someone who wants to leave FLL and move to your base. In seniority order, of course. The list if viewable online once you're on property. I believe you have to contact them each month to remain on the list, but not 100% sure about that part.