| I'm planning to purchase a flight simulator - one which will | interface to my transmitter. I'm considering the RealFlight G3 with | USB link. I noticed on a vendor's website they have two versions: | one for Mode 1 and one for Mode 2. I'm wondering why there are two | versions. Why is the mode not software configurable? I am a novice, | so I might be missing something here.
No, I think you're thinking more than most about it :)
I think the main difference is about which sticks are ratcheting and which return to center automatically. You could open up your transmitter and adjust it yourself if you needed to, though I guess that would void your warranty.
| On my transmitter I use the left stick for elevator and rudder, the | right stick for ailerons(coupled to rudder).
Sounds like you're using Mode 1.
More on the various modes --
The US uses mostly Mode 2. I've heard that Mode 1 is mostly used in Europe, but don't have any first hand experience with that, or with Mode 3 or 4. Looks like you're in Japan ... no idea what's popular there.
And yes, RFG does come with a controller. There's really no need to use your own controller for most things, but if you want to, the option is there with the later RFG2 controllers and the RFG3 controller.