Nah, bring back self study wing and a prayer stuff. All those weeks of FSI doughnuts and coffee made me fat. The CJ2 isn't Collins like the 2+ so it's worth learning the FMS and getting comfortable with it for the rating. I think there's a box to practice on there so spend as much time as you can fiddling with that. All the CJs are really straightforward so you will be fine. And with all type ratings, don't get knackered, just enjoy it.