Also, it very hard to find a TRUE X model and more likely that you will find a Lower model version2.0 model that has Lower model speeds for most but might have the higher model gear speed in example. A true N model would have different door handles but many without are placarded as a N. Also allot more different between the models than speeds ie systems and I sugest a good read through all 3 POH's with some concentration on fuel and hydraulic systems.