Use a 10 X 4 for your setup in the simulator. It should be close. Most people I've trained with that plane tend to change this setup out to a 2 blade 10 X 6 prop, which is easier to balance and cheaper to replace, especially if they are having trouble with flairing for touchdown. The trainer in realflight just as it is is close enough for most for training at the beginning, as what you really get out of the simulator is muscle memory for which way to push the sticks. If you're doing more advanced manouvers, you can adjust this model to be pretty close to an alpha. You might want to go onto their website and see if you can download any setups that others have done, as I'm sure that someone else has thought of this, which should save you a bunch of work.