A meet and greet is absolutely the way to go. The mins are dynamic, but right now: at least 2500 TT (3000 preferred), some leadership experience (inside or outside the cockpit), 4 year degree completed (or expected soon).

Every base is different. In My base the FMs administer and screen applicants. This who sit down with the CP have about a 75% recommendation rate, which is basically like a guaranteed interview. Getting the meet and great varies in difficulty, but no skeletons and the above criteria should be good.