I'm a real-world corporate jet pilot flying an Embraer Legacy, and I'm also a serious FS9 user. I've tried FSX but it's frame rates on my performance PC are nothing compared to the consistent 40-50fps at full graphics on FS9. Consequently I returned to FS9 and won't budge. It may well be 8 years old but it's still extremely realistic. Therefore I'm kinda hoping that the eventual RC5 will also be available for FS9, as there is still a very large percentage of us out there! ;0)