This post shows the 2 possible trades on tza today.  Each is making use of the 20ma not only to confirm the entry, but more important to help confirm weakness and the sell point.  I always look for what I call an accumulation candle to occur for the buy….one that is significantly larger than most, along with the markets showing weakness or breaking key levels of support at the same time.

These candles are set at 2 minutes apart, but depending on the day I will also look at 1 minute candles instead.  It depends on how fast or slow trading is that day and how the candles are forming.  Something to play around with if you are interested.