I honestly have not tried to flat spin it yet. Still just getting used to it. However, knife was easy and very neutral with little rudder and on mine, no major pitch or roll coupling to speak of. As I said above, I was even able to cheat a quick 4 point roll with ailerons only, without correction for attitude. It's a manuever I've been working on, and of course, they always look nasty when I do them because I overcorrect and/or have bad timing with rudder and elevator. With the Twister, it was a matter of left aileron - click stop. click stop. click stop. click stop. Wow! I felt like Joe Cool. [8D]