I am not into propellers so much, but because this is such high quality and study-sim i will buy it! Its important to support the great addons so we can get more of this superb quality in our airplanes! This is also the first time i wont be buying new aricraft from PMDG (777) just becuase i can´t stand FSX. If they want my support, they have to release it for x-plane! =)