FLL-MCO has a lot of frequency since FLL became an intl gateway. I can't speak to how difficult it is, but I have a feeling that it is a lot easier than it used to be.
MCO is a very senior base despite the recent influx of new hires. There are a lot of senior guys hanging out there who aren't going anywhere. The list of senior FOs is pretty long and a lot of guys upgrade in another base rather than waiting it out.