GBPUSD consistent losses on London opening

GBPUSD is in a down trend and is making consistent losses at the open of the London session. There aren't any major support lines until 1.6735 so trend can be expected to continue for the short term.

If I'm up early monday morning and the market has just been ranging will be going short right before the London session opens.

Using custom pivot points for stop loss, historical resistance line for take profit