I came across this interesting mechanical Forex Trading System that is built on a well known market range principle, combined with the London FX Market Open.
The method is designed to allow you to exploit the fact that on many instances the opening of the London market will extend the trend set prior to the quieter Asian session when it re-opens the next day. This method was developed around trading principles such as the Big Ben strategy and mechanical trade entry system and exit for trades. This is done to reduce the risk and maximize the profits. This forex system can be traded with a minimal time investment. From what I have heard it sounds like an interesting method by the looks of it. Have not tested it myself, but would be interesting to view the results!