New BS player here (had the game for approx. 2 weeks). Just posting to thank everyone here for the excellent information.
Earlier on I had my first successful (controlled, aircraft doing what I want almost exactly) flight with the Flight Director Override turned off. I must say, I didn't think I'd ever be able to cooperate with the AP turned on. After taking the advice given in this thread (flying with FD override on, using the trimmer hold technique), learning the fundamentals, then switching back to full AP and short, regular trimmer setting I think I've finally got the knack of it.
Big thanks to everyone who took the time to lay it all out, assemble the wiki resources page, and stickies lists. :D