Daylight Saving Time (DST) and Changes in the Trading Time

Finally after 3 months, today EA Pipscola_Y02 again suffered big losses. And once again this happens when the DST on / off is applied. In accordance with the schedule, began on March 13, 2011 the United States to apply the Daylight Saving Time (DST)and then to be followed by European countries on the last Monday in March.
I do not want to blame the time as the cause of this loss. Because even if I change the trading time 1 hour earlier, it's still could not prevent me from the loss. But at least I already have a conclusion about what to do when there is change in time zones.
Adjust Trading Time with the U.S. Time Zone
When the application of Daylight Saving Time (DST)ends, I have an opinion about what should be done. And I think that right now I have to do the same. We must adjust the time trading with the time zone used on the American market. Actually the logic is very simple, because we transact after closing the American market. It's only natural if we follow the time zone used by the U.S. market.
It is different if you run a trading system that deal only in the European Market. Either simultaneously with the Asian market or not, but before the U.S. markets open. In this case, you do not need to change trading time.
Finally, for the moment I change the trading time of Pipscola EA to 22-0 (GMT +1).