Your friend is full of shi*!. Futaba servos don't cause crashes. Thats almost as dumb as saying..... Well I won't go there. People become brand loyal and will say anything to make thiers sound better. I personally am a futaba person, but all the radios on the market have their good and bad points. All work well for the most part and none have a genetic problem that cause crashes. Use which ever you like. You won't have a problem like he described.