Short trade may be good by a single tranche, however multiple short trade tranches are more recommendable from the average monthly high of GBP band to average monthly low of GBP Band. The average monthly tranche estimated to 400-500 PIPs. Short trade generates two source of profits, the appreciation of the AUD by the GBP for estimated 1300 PIPs plus current interest rate differential overnight rollover fees.
Alignment to downward 1.8500-1.7200-????? subject to relative price to GBPUSD/AUDUSD in the future.