We don't know his true ability, as in where he'll wind up for his career, but given that there's not enough difference in pitches he's received or his swing rate to fully explain his massive jump in BB rate, I would say thewupk is probably right on that one. Power is one thing we'll have to wait and see. Harper has insane raw power, will that translate to long term results? We'll have to see. I think Harper most likely will be a left handed Giancarlo Stanton, though better on the plate discipline side so a better overall package.