I get it. I was the same way. My plan was to let the sim be my time for relaxing and enjoyment. As a matter of course, I'd learn the basics. In fact, learning the basics was a lot of fun. What I didn't want was for the sim to become work and a source of frustration. Over the past few months that's exactly what it had become. That's because I am trying to transition into airliners. The Zibo flies just like the C172. It's the other crap that's frustrating and requires some degree of study. Learning to program the FMS - which I tackled because I wanted to fly the CL650. Learning to read charts, and follow SIDS and STARS. On top of that, managing the radios during the periods of high work loads. However, cruise is the most boring thing in the world in airliners. I can see why sim pilots who've mastered Airliners enjoy it so much. If you can accomplish a real point to point flight and everything goes just like you planned it has to be a great feeling of reward. I'm trying to get there. At this point I can, at least start the engines on the ZIBO . I do intend to fly the 737-300 which is currently under redevelopment. That's my motivation for learning an airliner. BTW - the frustrations are subsiding and slowly being replaced with enjoyment and reward.