Quote from JeffUSA:
Now that I have thought about it more this system is probably not the way to go.
Scale Trading works like this. Everytime GLD (or whatever) goes down 4 you buy 1 unit and then when it goes up 6 you sell 1 unit. The numbers I picked could be anything. With this system you just need to make sure that your spacing between buy amounts is big enough so you have enough money to withstand a good drop in the share price.
Quote from JeffUSA:
TraderZones is right. I forgot about the part where you are only supposed to buy within the bottom 30% of the commodity's historical range.