That area is certainly one of importance as there is a trend line leading into the same narrow band of confluence. I expect volatility on Monday and Tuesday but starting higher and not going quite as deep as you suggest. Good idea though and thanks.
The Chinese must have read your idea, as the market started tanking around 10PM at about the level you suggested. I got short at the open and stayed in with little scaling until it got close to 75 when I closed the trade. About a 20 pt trade of which I got 50%.