RE: What should my next plane be?
If you're capable on Realflight with the settings at 100% realism then you 'll be fine with a sport low-wing plane. Sure, tri-gear is easier than a taildragger on the ground. Once in the air the mid and low wing planes aren't that much more challenging (as long as they're in the same class). My first plane was a Top Flite Freshman (anyone remember that far back?) which is a mid-wing, tricycle gear trainer. My second was a low-wing tail dragger (still have it). These planes flew 20 years before I bought the original version of Realflight. Sure, the high-wing to mid-wing to low-wing progression is a safe way to go, but with Realflight you can speed up the learning curve immensely. As siclick33 says, avoid flaps and planes that have known stall problems until you've got a bit more experience.