RE: Second aircraft
It really depends on your flying ability. When i learned to fly I flew a trainer till the wings were about to rip off. From there I skipped the traditional low wing trainer and went right to a Extra 300S. I never had any issues and it flew like a dream on low rates. Low wing trainers make great sport models and are still fun to fly once you have moved outside of their range. I think you would be fine with model you have chosen as long as you have someone thier to back you up and help you till you get comfortable with the higher performance capabilities of that model. Good luck!