Today UK Manufacturing PMI would be perfect for short trade in case of worst than expected data. However asian session created quite plain decreasing channel [30min chart]. If at the moment of release price was at the bottom of it I would stay away.

Best scenario would be if before the news price will rise above 1.6460 there would be over 70 pips room for short move on bad news.

If data released was positivly suprising, I would trade long only if price was low enough [1.64 or lower].

Neutral data or some unusual price action before the news will definetly keep me off trading.