"Do not allow feet to lift more than 6-12 inches at most" in the notes.
Really?
In the official video it seems he's lifting over a foot off the ground on most reps.
And I can't seem to really get much of anywhere at only 12 inches off the ground, forget about 6 inches. Judging by the video, as well as my size (I'm 6 feet tall with long legs) it seems more like 1.5 feet is about right.
Or is it actually as stated, 6-12 inches?