Hi,
I worked in a hedge fund as a quantitative analyst(forex and commodities), and have spent the last few years working on my own strategies for trading forex.
The system was just put live this week after over a year of rigorous testing and paper trading. This is a self automated system. It trades using a derivative of many indicators, by automatically weighting them in importance based on past patterns and comes up with an answer to how probable a trade will end in a win. I currently only take the higher probablility trades due to lack of capital since that reduces variance, but being able to take more trades will result in higher returns.
The algorithm is refreshed and reran every week(it takes a couple of hours to find the optimal predictions) so that it can react to different market situations. I cannot of course guarantee it winning on a daily basis. No one can. I won't even claim it wins every week in paper trading over the last year. But it is a consistent winner. It has about a 60% chance of success on every trade with a 1:1 proft:risk ratio. It currently trades at 0.5% of account balance on every trade, but I hope to reduce it to 0.1% in future when the balance becomes bigger.
The hedge fund I worked for used to charge a flat annual fee and a percentage of profits based off of the high watermark. I'm not sure what you have in mind when it comes to profit sharing, so I look forward to your reply.
Thanks