RE: which fms simulator model to emulate a 2channel plane?
While any sim is probably better than no sim, it's hard to imagine two planes that are as different from the Commander 2 as are the Pitts and SU-26. Both of these are high performance aerobatic planes, which the Commander 2 is not.
One of the slow flyers or high wing planes will be closer in performance to your Commander 2. I don't know if anyone has modeled a 2-channel beginner plane for FMS. If you go to the [link=http://n.ethz.ch/student/mmoeller/fms/index_e.html]FMS[/link] Links page, you'll find links to lots of models that you can use with FMS. Maybe you'll find your type of plane among them.
- Jeff