I was fortunate to witness one of the Hot Dog contests in 1975 at Stowe, Vt. on one of the greatest bump runs around, The National. The contest took place in January, during the annual Winter Carnival, and northern Vt. was in all its glory: icy, windy, and flesh stinging cold. Some of the bump skiers in the contest were from the west, so they were out of their element not used to the ice of New England, but still: MAN those guys could ski!! What a show, I'll never forget it, though I can't remember who won it. Might have been a French guy... At any rate it was quite the show. And at the end of the contest, the Upper National was opened to the crowd and everybody went barrel-ling down hell bent all at once Ha Ha Ha!
You'll might be interested in K2's history, on their website. There is some great reading about the history of the Hot Dog contests, and ski history in general.
Wuz A Skier