aha, ya I remember. My point was/is, international markets are noise re trading. If the local market is flying and you're long, and then say the Dax or FTSE or Cac or whatever opens red - now what? You exit on indirect info (AKA noise) or do you trade the price (AKA local index) and stay long? Certainly international markets have zero influence in my trading signals, in fact when entering exiting I totally ignore them. This is my main point on system design/usage, you can add whatever one wants into a system to help trigger signals, international markets could be one of the things you add. But my experience says it is of little use, rather use a few direct issues and trade that. Taking it a step further, I don't use anything that is not on a chart. In days way past I used to use international markets, but after a while I worked out that first waiting for an international market to confirm actually cost me money, didn't make me money.
The bottom line is really very simple - trade the price and ignore the noise.
That said a +2% day in the US will see us fly, and that's just a nice thing seeing as I am already long and well in the profit. Certainly not sure how you would trade this 2% move in the US?