I was really wanting practice.  The mistake i made on this is something i normally do.  I was assuming it was "strong again" since it was temporarily holding at the 20 again, but now i see that this is pointless.  once the strong trend is breached, i should consider weak from then on.  if i ever considered it strong again, it should have been after several successful tests of the 20 ema, not just "probably one".  oh well, tiny .5% loss.