I hope you mean an expert skier. When you watch people like Kreitler JT Holmes, Shane McConkey, the Gaffneys, on a regular basis it will absolutely blow your mind. I have never seen Seth in person, only the squaw guys, but in person their skills are truly humbling. I do not know where you live, but you need to get noticed, and that means entering big mountain contests and living at Jackson, Squaw, or a place like that. At a mountain like this you will see numerous people who are not famous, but will blow your mind with their skills. The scary thing is that as good as these guys are, Seth is on a completely different level. I would suggest entering those big mountain comps and seeing how well you do. If you can distinguish yourself in that crowd(which takes an INSANE level of skill) than you may get noticed. You are trying to get to the level of essentially being the best skier in the world. Also, Seth has a racing background, as do most of those guys. People like Moseley, JP, and CR had mogul backgrounds. Most of the guys who become big mountain dominators start out in these disciplines, or grow up at a place like Jackson or Squaw. CR Johnson was skiing technical lines at squaw like middle knuckle fingers and lines in the chimney when he was 15. JT Holmes first got noticed in his mid-teens ripping fingers lines when it was raining. The level of skill it requires to do these things is MILES above what it takes to ski your typical black daimond mogul run at a little resort. The best thing to do is work as hard as you can, ski the steepest terrain you can find, ski it nonstop, and do it over and over.