As can be seen .8573 has seen price reverse (and support) for the last 2 months. This area now coincides with WR1 at .8577.
With price looking stretched on some time frames, a reversal in this area looks guaranteed.
Carefree traders could enter at market with a STOP above WR1 at .8590 for a 50 pip risk. Careful trades might want to see if we head higher where WR1 will act as a magnet.
Careful traders might miss the entry if price reverses from current levels (.8542).
If you miss the entry I'd wait until we drop below today's open at .8521.