I would call myself an advanced beginer. What next plane to buy? I'm not hunting for super aerobatics, yet I'm capable to do do some loops, rolls etc. I'd like to stay in 40" span. Slow flying is fine for me. Which plane is the easiest to fly? My choices would be: E-flite Extra 260, Mini Funtana X and Great Planes: Extra 330S, Sukhoi su31, Edge 540E. But which one? Please help !!!