The official ideas have suggested stop levels which are often 2-3% from the entry price and not everyone is comfortable with stops so far away. The focus of Alphatrends is swing trade setups but those setups often provide excellent day trade opportunities. A day trader who is looking to hold the stock for the initial momentum in the trade will often want immediate action once the stock triggers and will recognize failure of that momentum to materialize well before a swing trader may wish to exit.
The alternative stop level is much tighter than the official stop level and will often times get triggered while the swing trade stop will keep a trader involved longer. It is up to you to decide how to use the stops in your own trading, sometimes it may even be appropriate to stagger your stops so that half of the position is exited on the tighter stop and the other stop will keep you in the balance. As with all the material on Alphatrends, it is hope that you can learn more about market structure and how various participants view the market, this information allows you to be more in tune and ultimately more profitable!