伦敦开放至悉尼开放 (London open to Sydney open)

Hello, i just want to share my strategy to everyone here..
i just recently use my strategy, so its not perfect yet.
this strategy is very simple,
trade on eurusd, audusd,gbpusd,eurgbp, or any pair you want,what we need to do is:

1.Look at the opening sydney market price, look the price at the first candle open, give it a mark.
2.Wait the london market open, when london open, place a trade and set the take profit at the opening sydney market price.
place a stop loss for 100 pips..
3.Wait until your tp is hit

NOTICE:
dont take the trade if the different between price between london open and sydney open is too small ( less than 15) because the risk and reward ratio is not worth..
if prices go up from the morning and when the london open it is on the yesterday high candle, and havent touch the yesterday low.the probability to touch sydney open is more bigger,
and the opposite as well..

just try to see it, the hitrate of the strategy is very high, the only problem is the drawdown..
i hope we can improve the strategy and decrease the drawdown and increase the profit..
Your opinion will highly apreciated