Zeev, on all the major highs we've had since the bear started, the sell-off's have ranged between 6.5% (Dec. 2001) to 16%, with an average of 10%. That 10% number would work nice for a test half-way between the 1368 and 1319 levels if we get a local top around COMP 1500. The 10% drop from there is coincident with Max Pain on the QQQ at 25 for December.
A good example would be the May 2001 drop from 2328 to around 2089.
The drop I'm talking about is 2-weeks after the local top is in. The average is around 10% over 2-weeks.