The Moo's will work in any market (some better than others, granted), but when you have lower volatility, you simply have lower risk, and can always increase reward by changing share size (which lowers per share costs).
No, we're not (it makes no sense for this strategy). We trade only NYSE listed stocks so that we can be on the same side as the NYSE Specialist when he/she gaps up or down with the opening print.
We use the exchange trading floor business model. Our traders put up a bit of risk capital, but then use our money to trade with. Check out the website, and feel free to call me directly to discuss.