Copper appears ready to impulse to twenty-month highs.  After jumping on March 1 in response to earthquake news from Chile, the futures have consolidated within the range that was defined that day and the next.  But in the last 48 hours of trading, copper has traversed most of the March range and is poised to break out to the upside.  Traders should look for a way to get long based on a small intraday pattern, ideally one offering camouflage.  (Posted by Doug McLagan)