What about a white box system, where you put in the algorithms you want, and you put in the stocks that you want to trade. I know that in low volatility market it is tough. If we ever get back the days on NYSE like a few years ago, when market would rip 5% in a single month, this system could become very valuable. Again you can create algorithms based on your own trading techniques and instead of trading 4 stocks trade 40 stocks? Sure the quality will not be the same, but if you are over all profitable then why not do it?