I really like FSX. However, there's no good RV for it. I've just got done flying a cross-country with the Abacus RV model and it didn't really feel right. Sluggish in roll, too prone to pitch up, and not much better looking than an early FS2004 model. However, the Flight Factory is beautiful and handles well, but only runs on FS2004. I installed FSX on my old flight sim PC and attempted to get the FF RV working on it, but no luck. The FF application that allowed the model to use their guages (as well as the excellent maintenance sim) does not work with FSX and there is no workaround. Worse, that PC has since gone belly-up and now I have no FF RV to fly. I've installed FS2004 and the FF RV on my latest machine but, while I have a physical install disk from Flight Factory, there is no registration/unlock information in the package. I seem to recall it was online but that is now unavailable because they are defunct.
![Frown :( :(](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
So, the bottom line is that I put up with the Abacus RV under FSX while waiting for the Baytower model to be finished and released.
BTW, flight sim is a horsepower game. I was never pleased with versions prior to FS2004; they were all jerky and difficult to control effectively; frame rates were so bad that smooth landings were all but impossible. I could get FS2004 to run smoothly on even medium-powerful machines. If you want a reasonable sim for just practicing operations, FS2004 works well and one of the Mooney models make a fair substitute for the RV (just resist the urge to retract the gear
![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
). I have run FSX on a low powered machine (by today's standards) and gotten it to work Ok but with most of the eye candy turned off. On the other hand, my high-end laptop (equivalent to a year-old high-end desktop) easily runs FSX with high graphics settings and dual monitors. My point is that both FSX and FS2004 scale well but due to the possibility of a good RV model being available for FSX soon and none really being available for FS2004 anymore I'd recommend going with FSX if at all possible.