MACD cross below zero line. I saw this at 11.16am or so. At that point there was a spike down on the 2min, usually (especially during slow choppy times, lunch) if I sell fast I am selling the low of a spike bar down only to have it move right against me. So I waited for the price to move back into the zone of the 3SMA+1, which I saw would be about 94.58 on SPY. So I sold at 11.20am at 94.52. At this point my super picky SPM system gave a signal on NT so I now think this short has a decent move. Nonetheless I only scalped it for that move to 94.00. When it bounced there I tried to hold but just got out since this is only day 5 and I really don't know exactly when to hold or not. I need a few more days.
My suggestion is to wait for a clear signal MACD cross when below zero line for shorts, MACD cross above zero line for lings, and plain zero line crosses. Then watch for what happens with the 3sma+1 for the short period of time after that. While waiting for this price area will make you miss the best trades, for now it will get you more in tune with the back and fill nature of the futs and this will save you in the long run I THINK.
Meanwhile, true to form, I am watching my NT chart with the super picky short at 94.45, sim NT is still in that short and it's a nice one. In a while I will trade these signals different than the raw MACD crosses and zero line crosses.
Also, if you want post a chart up here.
So my short on the NT picky SPM was 94.45 at 11.22am and the exit was time based exit at (will update soon).
This version has very few trades but unlike the raw version it backtests very well. I took Jahajees suggestion about volatility filter so it only trades if a stochastic is NOT at an extreme, so it misses a lot of good trades. I think something you want to autotrade will need to be very different then a method like this, but it puts it into another perspective.