RE: Trainers vs. electric park flyers.
Park flying and 'club field flying are totally different. I fly both. What you learn park flying teaches you ZERO about flying a 'glow' powered 5 pound 60+ mph club field flyer. My opinon is park flying is fun and a great way to spend $$$ buying another, and another, and another electric park flyer. I even take a park flyer to the club 'glow' field when it is too windy/rainy for the 'glow' flying.
I have a friend that has a new park flyer every month-week-sometimes day. and that is the best thing about parkflyers. I spend less in a year flying at the 'glow club' and enjoy it more, but I do have a new parkflyer - another pico stick.