The slow line fast always made more sense to me in bumps, or as a strategy for bumps. It's the round line around each bump where directional choice controls speed vs. the fall line/ zipper line between the bumps (fast line, which can also be skied fast or slow).
Best example of slow line/ fast line skied slow and fast in bumps, and what each entails is this video by Blake Saunders, that made the rounds on some there forums a year or so ago:
He prejudices skiing the fast line fast, but does a nice reverse progression to show the range from fast line fast to slow line fast (with examples of fast line slow in between). I've always liked coupling these concepts with Bob Barnes Offensive and Defensive skiing, especially as applied to speed control: Slow line fast is offensive (direction as the key component to slow down), fast line slow is at opposite end of the spectrum as defensive (with friction or braking as the main method of slowing down).
Best example of slow line/ fast line skied slow and fast in bumps, and what each entails is this video by Blake Saunders, that made the rounds on some there forums a year or so ago:
He prejudices skiing the fast line fast, but does a nice reverse progression to show the range from fast line fast to slow line fast (with examples of fast line slow in between). I've always liked coupling these concepts with Bob Barnes Offensive and Defensive skiing, especially as applied to speed control: Slow line fast is offensive (direction as the key component to slow down), fast line slow is at opposite end of the spectrum as defensive (with friction or braking as the main method of slowing down).