Exactly when is less best? When Allan doesn't have time to post, but finds time anyway, albeit not a lot. So let's get to it:

This is what we are up against. The above double 120 minute charts make the case for further advance as well as imminent decline. Starting the EW chart on the right we see an unfinished five wave advance, but accompanied by a False Bar Stochastic Sell in the making:

While the Blue Wave chart on the left shows an uptrend, but one that is losing momentum and looks about ready to turn over:

As of the open Thursday the Sell signal comes in at about 715, just about six points lower from where the SPX closed Wednesday.
There is only so far an end-of-day analysis can go and this is about it. I can make either case for Thursday, so I made them both.
You choose.