Unfortunately I can no longer use the private reply. That's why I added the little "not being enamored of my own voice" comment in a public post. If I had been able I would have sent that as a private message.
SPX-Chart: Fibonacci guide lines for rally from 738 to 918 to estimating depth of retrace. If we are going to retest lows then 850 and then 828 will have to be lost to the down side. Both are key supports. Chart just drawn