So basically my friend (who is a mogul skier and knows nothing about park even though he thinks he knows everything) got in an argument with Sammy Carlson, saying that a flatspin is impossible because you drop your shoulder and it becomes a rodeo. Sammy did a flatspin for him, I showed him tons of videos on the internet of them, and he had a hundred other park skiers yelling at him and he still refuses to believe a flatspin is a trick. Can I get your support and have you help me prove him wrong?