Nice chart EW12345, line (W)-b passing through the (approximate) 1185 cluster of points is critical, since a decisive break (almost there now) will lead to the (Y) wave development in an a-b-c pattern as you have correctly indicated. The momentum will be such, that I believe not even 1000 will succeed in holding the terminal selling pressure (even the last bulls will turn into bears at that point). Approaching the lowest target point (anywhere between 900-1000, some predict also 800) a massive short squeeze will take place signaling the new trend direction shift.