How to trade London session forex, is there a strategy to profitably trade the London session in forex?

I use this simple breakout strategy to trade the London session. I simply mark the high/low of the Asian session on a H1 chart and wait for a breakout during the London session then trade the break.

The logic behind this is that one of the busiest times of the London session is early in the morning when the traders in the bug banks in London are just opening for work. My thinking is that they place the big orders early in the morning so this can cause a breakout from the Asian session range.

I want to add that no strategy is foolproof but this works for me most of the time.