My previous analysis would not be complete without a time target consideration.
I think the correction will have lasted 10 weeks when it will be over.
SP500 has currently completed week 6 of the correction - Yes dont get fooled, even those sharp intra week rallies are part of the correction (the strength within is misleading)
10 - 6 = 4 weeks before the end of the correction at 1880.
This correction is having so far the same shape as the correction that took place in March/June 2012 which also corrected circa 10%
I am certain that most analyst will turn bearish below 1920, it will be a great buy exactly at that point when it reaches 1880.
Short now and stay tuned.