The idea is to try and find ETFs with the maximum Momentum and Relative Strength.
This approach does not seem to work effectively with stocks as the volatility, over all market conditions and insider information could bring down a healthy stock in a short time. In other words it does not seem to be a gradual process. These quick out bursts require constant round the clock monitoring.
Where as (as all of you know) when a ETF moves it means a particular industry/commodity/currency etc is showing strength.
I personally feel more comfortable with ETFs. This allows me the luxury to spend only a few minutes a day on trading.
I would rather be on the Golf Course!