GBP is not doing good these days. That's why I think there is room for a minor position in this >late< buy point. Because of the overall down trend on this chart and trading below all the EMA and MA's, it is save to say it might go a bit lower. I think it is fine to have a 160 stop-loss because it had 7 days straight with loses. So it might kick a bit soon. Trade this carefully with a lot of attention. See also below a link to my GBPCAD position I did some days ago, it's still going strong short and it's about to form a nice add-point for people already in.
